The Oct. price is 0.13 each at btcguild.com - just FYI. I expect it to be under 0.10 by the end of the year, but by then the difficulty will be so high, you'd need 10 of these to pull in 0.05 BTC a day.
Um, your estimate is a little off. I've got 34 right now and I'm barely getting 0.02 BTC a day.
M