If you’ve been thinking about making the switch to a smartphone or considering an iPhone, now’s about as good a time as any. AT&T enabled MMS on the iPhone today, which brings it up to speed with candybar phones of nearly a decade ago. The wireless provider also just found some old iPhone 3G models lying around that it will sell for a paltry $50.

Now, if I were you, I would splurge for the 3GS. It’s faster, has a better camera, and records video, which makes it much more than a cell phone. If you don’t want to drop $199 on a phone right now, though, the $50 3G will do just fine. It’s not that much slower, and you could probably live without the extra camera features.

There’s still one big reason to stay away: AT&T. Their service sucks and 3G coverage away from major cities is spotty at best. Also, you might be able to get Apple’s baby on a different network before your contract is up.

The good news is you’ll be just fine in either case. If you buy, you’re getting a great phone fairly cheap. If you don’t, you’re avoiding all the headaches that come with being tethered to AT&T. That is all.