Seriously Fallout 1 and 2 didnt have them. Why Fallout 3 and New Vegas needed them is beyond me. You shouldnt just stop learning when you reach Level 50, it should keep on going, perhaps after 50 you earn a perk every 3 levels. Whats wrong with eventually maxing out all your stats? Whats wrong with eventually becoming an unstoppable harbinger of doom to your enemies? Dont want to level up more? WHy not add an option where you can set a level cap, that once you reach that cap you wont earn any more XP unless you decide to raise or remove the cap. You could even set it to Level 1 if you feel like it, so you will never level up.