Because of a possible Adobe merger, I don't plan to upgrade/buy MX2006.
Because of a possible Adobe merger, I plan to wait before I upgrade/buy.
Personally i'm probably going to be asking those above to upgrade straight away. Why? Mainly because the merger isnt going to even happen for about another 8 months, on top of that Adobe aren't gonna just pull/not support these products for another year. Its going to take a little time while they combine software packages etc.