Where would you say the best place to buy an iPad is, and why? Are there any places with "bundles" or stuff like that? I haven't been paying much attention to iPads lately, so I'm sorry for the dumb question. Also, AT&T vs. Verizon iPad? Which one? I used to have a Verizon iPad 2 but I'd be interested to know what you guys think the AT&T experience is like.