Originally Posted by
JMich
What do you mean "no reason"? You do not do the quest for the XP, you do it for the girl (and to open up the next area, for more girls). Your XP will always be capped faster than the game's content will arrive, but you don't really get anything from the level up (other than an energy reset).
It's like saying in Baldur's Gate that you'll no longer do any quests, because you've already reached the XP cap, thus the only thing you'll get from completing quests is a couple of items you don't want.
Not to mention that going from lvl 40 to 41 will mean a need for 3-9 million to level the stats again, and a ton of books to level the girls.