I also used max for a couple of years, then I got maya and was not happy because it was not MAX! but know .... the more you work with maya the better you get. I still have max installed and sometimes when I launch the program I get confused because teh spacebar in max is not giving me the hotbox ??? so i ditched max.

If you like max and you get the job done stay with max, but .... try Maya for a while and you will forget that Max ever existed !