I remember when I bought Dragon Force for Sega Saturn for about $60.
Now it seems to be valued somewhere around $250+. Yup.
Also, I bought Fire Emblem: Path of Radiance at the time it was worth not much. That's a game I paid $13 for. Not bad. Same kind of thing with Eternal Darkness: Sanity's Requiem, I think I spent $20 on that game.
All 3 of these games I still have.
Warning, the self-destruct system has been activated, all personnel should evacuate immediately, 5 minutes to detonation.