If you're mining to turn a profit, maybe.

I'm more interested in just making a slow and steady conversion, since my computers are always on, from dollars into the electric bill to BTC.  Will I ever need them?  Maybe, maybe not.  TigerDirect takes them, and so does my preferred site for MP3's, so there's that.

That being said - 2 new Antminers fired up today, they'd already hashed more shares in the 5 minutes they were on than my GPU had in what was the 90 minute lifetime of the chrrent block so far.  Yay.