I've seen a few rather reasonably priced 675GH/s and above ASICs for bitcoin and wondering if it's still something worth investing in? I can't go for the high TH/s ASICs as I don't have that much money to put forward. I calculated my break even point would be about 9-11 months at CURRENT BTC prices.

Is this still something I can make a little profit from? Baring in mind I can set it up at work so I'm not paying for electricity.

I don't even have to invest in a BTC ASIC if you feel like a Scrypt ASIC would be more profitable. I'm open to all suggestions.