I won't go into details, but I suddenly find myself the owner of a Blackberry 8700. It's in excellent condition, but I know zilch about these pda type phones. From what I can gather, if I actually use it, I'll automatically get a data package added onto my at&t phone bill. The idea of saying I have one is a bit like saying I just bought a Mercedes for the prestige of it all ... but I really don't know if I'd use all the various features.

Can some of you give me the pros and cons to either keeping the phone and activating it or should I just up and sell it on Ebay instead?