Time to get my son off the peg perego stuff and onto his 1st real atv.. He'll be 4 when he gets it.. Like most of you on this forum with kids, he's been heavily exposed to atv's and is very competant for his age.. The questions is.. Do I bother with a polaris 50 or just go to the 90?.. Or do I bother with polaris machines at all.. Are they reliable or does anyone recommend others.. Of course I'd rather he ride a polaris.. Just to don't want to get one if its gonna be a basket case.. Thoughts?..