Maybe it's not necessarily a bad thing that the game isn't made for the long haul?
Think of a campaign as a movie: the characters progress, it has a beginning, a middle and an end.
When it's over... You could start thinking about completely new characters going on a completely different journey. I really don't think this is a bad thing: it challengers your imagination and brings some fresh air after playing for months with the same character.
I've never been that interested in extended character progression, anyway. I prefer a moderate amount progression and then on to a new story, a new character, perhaps a whole new game for a while and then coming back to this one. But that's just me, of course:)
Next thing we do, we have a console rpg character who must do 999,999,999 point of damage in order to entertain the player.