For players that like playing a variety of builds in New World there are a couple barriers to switch too much. First is acquiring gear; it can take years to get the right piece(s) of gear for a build with the random gear system. Second; even if you have the gear it is prohibitive to have it all upgraded to 625 gear score via umbral shards.
The good news is for those that like playing a lot of builds you don't need perfect 3-perk legendary gear. You can get elite 2-perk gear that is more than sufficient for many builds. The bad news is that 2-perk elite gear still costs the same to upgrade as legendary gear so it is a feel bad everytime you pump some precious umbral shards into a purple item.
The idea for today: reduce the umbral shard cost to upgrade gear based on it's rarity. Legendary gear stays the same as it is today but 2-perk purple gear could be reduced to 50% of the current cost and even blue/green gear could be reduced to something like 25%/10%.
This would encourage players to try more builds and increase the use of the non-legendary items in the game.