You could sell it now it's worth something, or you can wait till any/all of the 2GH/s drives drop in price (redfury/bluefury/nanofury)
By then 2GH/s is utterly useless.
333MH/s right now is also useless
49x333MH/s is not top-notch these days but still sort of viable.
49x2GH/s by that time might also be viable. Maybe not. Maybe it will. Nobody knows.
If 1x 2GH/s is not economically viable then 49x 2GH/s also isn't. Because gains may be 49 times higher, the costs are also 49 times higher. I think people with those USB mining farms are fooling themselves if they think they are going to break even. That was the case when the first USB Block Erupter was released and is the case now. It's maybe interesting as a hobby but not profitable from an economic point of view.
It is so very fashionable to trash talk about those adorable USB Blocker Erupters!
USBs aren't worthless junk until they don't cover their electricity costs. And with BTC hovering at $1000+ range, there's a long time to go before that happens.
I started with a couple of .333GH sticks then bought more and more. Now I have wacky assortment of other ASICs to go with my 70 sticks... 6 Bitfury USB sticks, 8 ASICMiner Blades, a BFL Single (2 more being delivered today), 11 Bitfury H Boards, a 3 module KNC and a 180GH BitMain AntMiner coming soon this week. Plus preorders for 2 BFL 600GH Monarchs and a KNC Neptune.
With that small arsenal of equipment I'm earning about $800 a day right now. You have to start somewhere! And the cute little sticks are a great to get your feet wet. And with an aggressive reinvestment strategy, anyone can grow their share of the network hashrate. Besides, those buggers were virtually free a month ago. Now they're going for $50 on eBay.
