Been using my mining rig of USB Asicminer Block erupters for some time now (scoff... i know)
Bought some bitcoins when they dropped bigtime after the whole DPR bust, so im making good headway thus far; looking to meet some great minds here!
Welcome! How much have you made? Did you reach roi?
Because USB Block erupters are bought with BTC, you can never reach roi (mine so much BTC as you used to buy these)
But USB Block erupters have entertaiment value as well, so not easy to judge