Kids these days. When I got a new toy I never tore it apart to see how it worked. Or I’d at least take care of it for a couple of weeks before I started to disassemble it. It is interesting to see what’s inside however, and see where they’ve left room for expansion.
The DSi is pretty impressive to look at. They’ve really shoe-horned quite a bit of technology into a very small case. The good news is, the battery is user replaceable, so when you’ve worn it out, you should be able to get a replacement.
At any rate, Peter says you should buy one, and we liked it when we saw it at GDC, so go get one.