bad timing buddy... should have waited for the asics version
Atleast he has this to fall back on if he chooses to switch to ASICS 
2. Hey, what the heck? Whyd you come out with this after I just bought a bunch of Singles. Im going to be left behind!
"We hear you loud and clear and we promise to stand by our customers through this technology change with an all inclusive trade in policy designed to protect the dollar value of your existing hardware.
Upon release of BitForce SC based Singles & Mini Rigs, all previous generation BitForce products will enjoy a full 100% trade in value when used towards the purchase of the newer generation replacements. This means your current device is protected from depreciation through this evolution in technology. This buy back offer is good for all previous generation BitForce units whether purchased directly from us or from a third party. Full terms of our obsolescence guarantee will be forthcoming.
Having said this, its also important to point out that current generation products enjoy strong relative hashing power today and that will continue to make them profitable up to and through the point of ASIC market penetration when they can be traded in."
http://www.butterflylabs.com/bitforce-sc-faq/