I would pay for a feature to carry over stats after I die. Just sayin'. Maybe add the option to clear data so someone could start over, but yeah. Also, it seems like all the red weapon drops are the only ones with the additional skills (PotionFind, Proc, etc), and their damage and crit stats hardly justify switching out for them when I find them.
You could make so much money by turning this into a turn-based multiplayer game. 1 side sets up humans, with specials like Rambo and etc, while the other has to try and take it out