Some hepful feedback:
What made diablo players like myself such longtime players once the game was beat was awesome loot. Now loot seems very limited, with drop rates and crafting as is, 99% of gear choices are exclusively rare items.
In contrast, before we had:
Runewords, usable white items, magic items w/ prefixes better than rares, good unique weapons, good full sets, upgradable lower tier items with horadric cube, craftable items as their own special type, and ethereal items. The variety and frequency of cool loot kept us hooked.