thats exactly what i would do, but i tried to express that i wouldn't spend extra money for it. again, point here is i think it could work and please everyone if they would integrate a "rune bank" thats exactly like your current bank. you get a certain count of open slots for free and if thats not enough you have the option to open additional slots. sounds great to me. could work. plus its easy for developers because they can simply just copy the bank interface into the rune window.
however lets not loose focus on the bigger picture here. its not up to us on how to fix or integrate it, but i think we all agree on having a need for a better place on where to STORE our runes. the old hero storage worked, it was a nice loophole but with only being able to have 12 active heroes and not being able to send heroes to rest with runes equipped its gotten really bad and annoying. there has to be something integrated because thats how it shold have been done from the first day of this game.
now its time to make it right.