This is pretty much the exact same thing I posted in this thread, just explained a little better....
http://bbs.tynon.com/showthread.php?...TTON-FOR-RUNES
To take that idea even further, (and make it appeal to the dev more) Each section in the rune bank would have to be unlocked with gems to use. something like 10 for 1st, 20 for 2nd 40 for 3rd, etc etc etc. So basically you pay the 10 gems for the first bank, and it opens 8 slots with its own equip all button. Then youd pay 20 for the 2nd bank, and itd open a seperate 8 slots, with another equip all button, so on and so forth.