Cost wise, it appears to work out to be about $5 per roll of 35mm. That's not too bad, I don't think, if you've got 40 rolls to process! Anybody besides me got a Wing-Lynch still?
I already placed a pre-order a couple weeks ago and intend to give it a try. It's about one-third less expensive than having your transparencies processed commercially, but still more expensive than the blix option when doing them yourself.
See this earlier thread for additional information: (there was a url link here which no longer exists)