just to add,
I do recognize that player count and people not installing the newest version may have to do with the match queue time.
every game I have joined in the past 24 hours I have been the monkey. If you were the one to queue into a match first, which combined with the long match queue, you are almost guaranteed to be the monkey. due to the fact that it takes on average 5 minutes per game queue, this can get repetitive and really annoying. adding some 50/50 chance to be either bloon or monkey would be helpful (not talking trash about the game, it's one of my favorite games). (also this is a personal gripe I have with queuing, not sure if others have this problem or not).