For those wondering why he did not post, just search for the number of posts complaining about his prices. Than take a look at a recent lock thread involving himself and ASC user here. Read the follow posts in that thread 95% of which are bandwagon basher's some of which have never even dealt with Mark. I am willing to bet, Mark even received a nasty email or two as a result of that thread.
Now this of course is pure speculation on my part but, if I had continually deal with crap like this than I would probably call it quits as well.