I would love to get store credit, but the only store I have locally has a no trade/buy policy. They'll TAKE it of course, just not give anything in return. But I'm renovating a new house and have plans for a huge built in. I figure I can give a whole corner to it and just let'er go.
As for difficulty, the type I've got is going like crazy. I had a frag
of pulsing xenia that only lasted a couple months and then wasted away. Kind of hit or miss I guess.