Against my better judgment. . .
Just spent 0.5 BTC on another 5 Red Fury ASICs. With my current 3, this should give me about 17.6 GH/s total.
Could have spent less at .295
BTC to do a hosted Group Buy of 1 share of Antminer/scrypt rig at 18 GH/s and 18 kH/s:
https://bitcointalk.org/index.php?topic=434311.0