Depends on your financial situation I suppose. $70 for me would be fine, if you think about it that is just over the cost of a new release game in the US, so the money/achievement ratio is balanced enough. In Australia, the next expensive model up from the phone I got was around double the price (about $400) so that is definitely not worth it as far as I am concerned.
That is what I did, but the cheap one I got (Nokia Lumia 610) can not actually run all the games! So make sure you check into that if you dont want to miss out on some free games, or if you want to be able to have access to the whole library of WP7 games.
Haha yeah I will be the first to admit they are not the greatest phones, but if I can earn achievements when I can't play Xbox im happy enough. I will actually check for updates though because now I think of it I haven't had one for a while.
I'm using a WP7 actually. It doesn't affect my iPhone or PC, it is just this WP7 that can't handle it. Fair enough you want to keep the sig, I guess I will just make it so I can't see any, unless you know of a way to just block a particular users sig without ignoring them? I would rather do that if possible because I like seeing peoples sigs.