How are the blackberry curves for t-mobile?

BlackBerry Curve 8520 or 8900 vs Jordan 12 retros?

• Okay so i'm 15 with a job. I just bought an ipod nano from a pawn shop brand new for $75. While I was there, I noticed 5 blackberry curves for my carrier (Tmobile). I'm not sure if they were 8520's or 8900's but they range from $100-150. The one that is $150 is brand new in a box. But today, I stumbled across these jordan 12's for $150 that I've been wanting forever and I can't find them anywhere. Please help me decide on which is the better investment until my next paycheck. Thanks in advance. *ALSO I currently have the samsung highlight as my phone with tmobile. If I did decide to get the blackberry over the sneakers, would I have to change my internet plan? Or would it stay the same?

• Answer:

  u just upgraded my bb 8310 and compared the 8900 and 8520. i went back and worth for a while and after tons of research via internet/carrier customer service/review/etc i chose the 8900 and LOVE it! 8900 is faster then 8520 and has a better camera with a flas. the 8520 does not have a flash! yes the 8520 has a trackpad rather than trackball but i never had a single issue with trackball and use the camer religiously so that was more important then a trackpad!