Use this calculator to see if it's worth it.

http://mining.thegenesisblock.com

Also take into account how long it'll take to get to you and setting it up to mine.

I dumped $7k into building my rigs. I would've made more if I just bought $7k worth of coins. Plus my electricity bills are $3k per quarter. So yeah, I'd buy coins instead.

Hope that helps. =)