Like you could set an items roll get a perfect roll with just luck in how big the rolls are on items but doing so will cost more. Make is so setting each stat increases the cost by like 1000 or more fiery brimstone. This would increase their value and allow every crap legendary to be worth something. Of course with guaranteed rolls this would allow people to be willing to pay big bucks for large amounts of brimstone and would keep prices quite high.
If you make it BoA it would prevent flooding the market, but would take some of the incentive out of crafting.
Soooooo, does this sound like a good idea?