AWS (or others) vs VPS

I monitor a few websites with pingdom, one of the sites I monitor is not mine but I monitor out of curiosity is a amazon hosted site. In the past 6 months it has had 3 hours of downtime and 2 hour of that is in one chunk, apart from the it just went off for a minute at a time. It’s always constantly fast. I have not server admin skills but if did I would definitely start hosting sites on Amazon.