10 Things Everybody Hates About Item Upgrade

WoW Upgrades - The Item Upgrader
Upgrades give you an increase in specific statistics. Each upgrade increases item level by 3. A random additional substat is also added to every upgrade.
item upgrades upgraded gear is usually more useful, unless the item has a low requirement by nature (like FB sorc shields) or has a large variance in stats (like eth Titan weapons). The latter are less valuable from upgrading due to the requirement to roll for a perfect model.
Recycle Points
The item upgrader allows players to upgrade gear to a higher level by supplying the appropriate currency to the NPC. Upgrades can be applied to any kind of armor or weapon. The item used to upgrade the item will be consumed and can't be used again. Upgrades can also be applied to the enchantments.
The upgrader is located in all major cities, and can be visited at any time to upgrade your gear. To keep your gear current it is recommended that you visit the upgrader every few weeks.
Upgrades will cost more depending on the item level, however they'll always be less expensive than purchasing new gear. For instance upgrading a Benthic chest piece to ilvl 385 will cost 20 recycle points, while purchasing the same item from a different player will cost 105.
Valorstones
Upgrades are items that can be used to purchase weapon, armor, tool and accessory upgrades. They are purchased by players from item upgrader NPCs in exchange for various currencies, and may also be found in random treasure lists. Once an upgrade is purchased it can be used on any weapon or tool with an The button will show a preview of an item's next level of upgrade, if there are enough materials.
The cost of upgrading is based on the item slot and the current item level and the weapon's price is higher than bracers or gloves, for instance. Each upgrade costs 15 Flightstones and a number of crests, with certain upgrades offering discounts to reduce the cost of Flightstones or crests that are used. Once an item is upgraded to a certain level it is able to be downgraded and sold to the upgrader at a lower cost.
Many locations offer item upgraders in addition to the main island and a few outposts. The NPCs provide both an upgrade discount and a chance to obtain a new upgrade recipe. The discount on upgrades increases depending on the amount of items that are being upgraded, and can be increased by having players complete some specific achievements or complete quests.
Unlike Cromwell in Baldur's Gate II, there is no item upgrader available in the beginning of Icewind Dale. Instead the NPCs that can be used to upgrade are acquired via various methods which is both an improvement and a drawback.
In Season 3, many new features have been added to the upgrade system. When a player has an upgrade to a specific item level for a particular armor slot, upgrading additional items to that same item level will cost less even in the event that they are part of a different gear set.
The amount of Valorstones needed to upgrade is reduced and the discount is affixed to all accounts. Similarly, the amount of Harbinger Crests required for upgrades is also cut and is not available until players reach certain milestones in their achievements.
Crests
When upgrading equipment in WoW players have a variety of options. They can use Flightstones which are a common upgrade currency that is accessible to all, or crests, which are more specialized and are consumed during upgrades at specific levels of items. Crests are an essential part of the Dragonflight gear progression system that was introduced in 10.1, and come in 4 ranks.
The first thing to remember is that Crests are only available to equipment that is with a certain rank. Each rank comes with an upgrade path that is different. The simplest and easiest upgrade is 15 crests. The most complicated upgrade requires up to 20 crests, based on the type of gear that is being upgraded.
Players can earn crests by completing content at the appropriate level. This could be done by engaging in outdoor activities or doing dungeons or raids in all difficulties to get lower-level gear or Mythicbosses for raids, or dungeons with a heroic difficulty to obtain endgame gear. These crests are then exchanged with an upgrader for the item such as Cuzolth or Vaskarn in Valdrakken to upgrade the item in the proper steps and paths.
Utilizing these new currencies isn't too difficult however, the system does introduce some modifications to the upgrade process. When a piece attains the highest level of upgrade for any rank (Explorer or Adventurer) it is no longer required to purchase Flightstones. This change is designed to allow players to get their equipment up to the highest possible ilvl on all their characters instead of relying on seasonal loot.
Another important change is that crests have one purpose, so it's important to use them properly. For instance, it's a good idea use all of your Whelpling-rank crests with the best gear you have available and keep Drake and Wyrm crests to use for the next set of upgrades you plan to create. This is especially applicable to rings and trinkets that fill multiple slots on the character which will only be able to avail the discount for all accounts when all slots are full of high-quality gear.