For the most part yes, in a long game that might take an hour plus to achieve once I get to wizard or beat it its just a matter of time, a short amount of time but some games, especially older games like TS, DM and JM I didn't mind getting to the end and doing it over and over still its on its way out after that. Thing is lets say LOTR's. I completed that final wizard in just shy of 2hours and sold almost immediately but I'm ready for the challenge again so like video games after a grace period (couple years) its fun to go back in.

Sorry buts thats ridiculous, both can be replayed with very different strategies and outcomes. Its perfectly rational to feel its time to sell a game once u have beatin the wizard mode especially on a deep game. It depends on the individual ofcourse