The problem with wealth-by-level in 3e and 4e was that this wealth directly correlated with personal power by way of magic items. 13k gp (level 6 WBL) gets you a +2 stat booster (4k), +1 armor (1k), +1 saves (1k), +1 weapon (2k), and +1 deflection (2k) plus assorted bits and bobs like a wand of...