I bought the Pi 2 for a specific project, but it lacked the ability to run certain programs within certain conditions, which made it useless to me. I also purchased it to mine with, alone as an experiment, which was also a flop. eBay helped me get my losses back...
I guess if you're a bit techy then people can find a use for it but for the average person it's not that useful really. Another thing to me is its touted as a really cheap computer but once you buy everything for it such as a case, keyboard, cables, monitor etc you could have just paid a little more and got a cheap little laptop. I would have sold mine on ebay but I would only lose money because the pi2 is out now and why would anyone buy a first model when they can get a brand new one with double the specs.
