I bought 14 ASIC block Eruptors USBs for £160 GBP a few months ago, so far they have mined me 0.19055526 BTC and about 200,000 ASIC coins and 600 OSC.

Never thought they would make the ROI, just think they are cool - I make more using my GPU rigs and 6x Dell 2950 servers mining FTC/LTC/FST/RED coins! then trading for either LTC or BTC then trading on BTC-E.

Took out over $1k in the last week when BTC/LTC was high.