I somewhat agree with you on this. There are some updates that are completely useless, ie. the hunger bar, the villagers, ender. However, there are many updates that enhance the game in many ways. For example, the addition of ocelots to the game made it so that you don't have to look around every 2 seconds to see if a creeper is following you. The addition of enchanting and the levels gave us an incentive to go out and slaughter those pesky mobs that are running around in the night.