Phantom000: I describe Arcanum as a flawed gem and one big flaw is the leveling system. With so few points to spend and so many things to spend it on I had a habit of making characters that were ultimately useless.
I feel ya. One of my own pet peeves is that thanks to all the available side quests, one can easily max out before reaching the halfway point of the game.
In theory, any progression after that still benefits your followers, up until they hit level 50 as well. But since I usually go solo, that's strike two against the system. (And strike three, for the record, is how haphazardly each level increases by.)
Which is why I don't bother playing without the Level 127 hack anymore, along with my own custom .mes file that increments XP in a much more logical manner. (Yes, I'm channeling Sheldon Cooper here; don't judge me.)
Anyway, now that you've completed the game once, try something completely different. Play a character with 4 IN or less (half-ogres are perfect for this) and watch how differently everyone treats you. Or, be as despicable as possible and do every evil quest you can. Or, try being a smooth talker who only fights as a last resort; or even a pacifist who doesn't even carry a weapon, relying on charisma and their followers instead. Be a half-orc, and listen to everyone insult you to your face. Be a lowkey racist yourself, like a dwarf who only accepts dwarven followers. Be a mage who spams the Harm spell. Be a pure technologist, which is a lot harder than you'd think. The possibilities are endless, and the choice is up to you.