So, my job gave all of us iPad minis today as an xmas gift. It's the original 16 gb kind. They said we can go to an apple store and exchange it for something else if we want a bigger one, so I thought about exchanging it for the 16 gb Mini 3, but I'll have to cough up $150, which I don't really have to spare. So before I rip open the shrinkwrap and make it unexchangeable, is the original mini any good if I crack it open and upgrade it to the latest OS right off the bat? Or will it be really slow? I'm mostly just going to be using it for surfing the web on the sofa and occasional games if I'm stuck in a waiting room, nothing too hard core.