I think you mean the M06R. I knew it would be limited edition but wasn't too worried about that. The M06 Pro was available for the longest time (I originally bought my M05 Pro in early 2009, and my M06 Pro in mid 2011).
Sold both of them mainly because at my local track, the fixed gearing was a huge disadvantage. But now that I got high speed gears (thanks monkeyracing!), I'm in the market for a new M06 again. Don't want a used chassis though.