The GameStop card is invitation/SCT only. I have the card (I also have three AMEX - green, platinum, Hilton Surpass). The APR doesn't matter to me as I PIF before the statement cuts. And as far as the rewards go? The PowerUp rewards structure has always sucked, this card just lowers the suck level by a few points. I actually bought my Forza XBone bundle using the card and paid it off a week later.
As far as the card preying on young people?? Well, I suppose one could say the same of Comenity's VS, Buckle, etc., cards... Just sayin...