Actually, for me it depends on the game it self. Some games give you a good experience as you grind and some are not. I used to grind to the max level in most rpg games like Star Ocean series (SO2 was my first), this game was different Because, the max level for most RPG at that time was 99, but this game was 255, the first time I saw LV 100, I had the desire to continue on and try to reach the max level. But, for other games like Suikoden, I didn't care much about grinding Levels as long as I beat them game. SO2 had a nice system for leveling your special attacks, as you level up the attack, the property (and the look for some) changes, it motivated me to continue leveling those skills to max. When I played Disgaea 1 on ps2, I got a numerical-orgasm from those high numbers. This game starts when you finish the main story. I mean, the max level was 9999, different than all of my old games. In MMO games, I just grind while doing quests/client orders. A good example is PSO2.