I just have the first R2 as well, and I really like it too. I held off on the others due to price, but they are pretty nifty. I could see them doing pretty well at retail, if the price isn't too high. I might consider picking up another one or two, it all depends on the budget. I'm definitely glad I have the R2 though. I could see kids getting a kick out of it, I know our nephews think the one I have is pretty nifty.