I'd be fine with them increasing the resell prices of equipment we find if they also remove the value of things I probably shouldn't be picking up and selling, like crates, chests, barrels, and candles. They only sell for 1 gold each, but it adds up. Although, I do like taking containers so that I don't keep re-checking them to see if there's anything in them (can't re-check 'em if they're not there anymore). Not every container's tooltip says "Empty" when it is.
Otherwise, I like the struggle. Honestly, I felt too powerful through most of the prison campaign. If a fight was too hard, I'd just do something else and come back to it later, at which time I'd be godlike in comparison (I think leveling up has too much impact). I'm currently rerunning the campaign with only one character, and I'm not running into much in the way of adversity. If I have more gold to spare, I could just buy everything and what little challenge there is would be gone.