I went with an M262 about 2 months ago and got it for $2500. Seemed like a good deal based on its condition so I scooped it up. It has one of the best shutter sounds I've heard on a digital M, and though that's not a big thing, it's just a nice bonus. I don't really care about live view or video, so this particular M has been just about perfect for me. If I had the extra money, I'd probably even have gone with the M-D 262 since I really don't even need/want the back screen. In any event, I think I'd take the advice of those above and skip the M9 generation, and move to the M240/M262 realm.
With that in mind, I have also gone back in time and just bought an M8.2 and have also recently acquired an M8 in a trade. So far I'm actually really loving the M8 again having not owned one in about 8 years. I'm using the M8 mostly for a test in IR photography, but it just seems to offer a great balance for an everyday digital M.