I get the impression that it's going to take some years before a majority of the Ableton Live community decides to take part in Max. I manage a Ableton Live social group online and anecdotally, I don't notice much participation on Max topics. Additionally when I meet people who use Live, many times the buck stops there. Personally I had hoped that Max4Live would bring in more Max users. I'm sure that's happened somewhat but it doesn't seem as embraced as I had hoped.
Personally for me, Live convinced me to get a full copy of Max. The use of both pieces of software balances out the multiple creative approaches I want to practice.