Won't do it, my iPad 2 is good enough.
However, I have the iPhone 4 and do want to get a 4s, only to get on the "s" rotation of phones I guess. It's just irritating that when I get a new iPhone, they come out with the "s" version not too much later that seems like it's better. The "s" rotation historically has the better stuff of that phone generation or whatever, so I think it's better to be on the "s" rotation of phones rather than the regular one. I guess in the long-run it doesn't really matter.
'11 BMW E92 ///M3 - ZCP and DCT
'15 Ford F-250 - Lariat, 6.7 Powerstroke Turbo-diesel