Someone jokingly said to me that Fallout doesn't need levels, but that got me thinking, is that really such a bad idea? I think it could work. You'd have alternate ways to obtain perks and skill points, like have some quests reward you with skill points, and there'd some kind of vending machine that you can buy perks from, but not all perks can be bought, some perks are quest rewards. Other than it being an alternate way to play your character, it also comes with the advantage of no level scaling, meaning that dungeons(?) can have a set difficulty instead of changing to match your level. No weapons become obsolete because enemies never get any tougher, that low level raider spawn will stay low level, you'll never have to risk going into something late only to find out your favorite weapon(s) aren't good enough anymore.