The best games cost less then a dollar

I have a personal policy of hardly ever paying more than $20 for any game. With the risk of running this off topic I'll add that it dispoints me that a movie which can entertain a crowd at a time (albiet for about 2 hrs at a time) starts out costing <$20 but a video game which entertains one person at a time (multiplayer aside) costs >$50 to start with. It's like the value for a new video game is just not there comparitavly. But oh, how I love them.
I have played many
GOOD video games that costed below 10$. Deus Ex, Sid meier games, Fallout tactics, Hitman 47, starcraft etc. Oh if you want
NEW games then that's another thing. But new games aren't always the best. Thus if you would want good games that aren't new they would cost less then a movie and honestly I like games more then movies. Like movies, games can be replayed.