Recently I have been buying games at car boot sales and markets. The 3 most recent games I have bought (and played) are:
Ford Racing 2 (PS2) - While this game may look like any other low-quality licenced game, there is quite a lot to like. A decent selection of 30+ cars, some good songs on a, admittedly, small soundtrack, and some interesting tracks that are set in various locations, all with a unique colourful look. Unfortunately the game is let down by imprecise turning at times and the game being quite a way too hard on the highest difficulty, and a bit too easy on the lower difficulties. Not great, but also worth a look.
Ridge Racer (PS1) - This, meanwhile, is a great racing game! While there is only a small track selection, I love the way the cars drive and the drifting is very satisfying. The cars are all unique both graphically and in the way they handle. I like the colours the game uses also, very bright and vibrant. A great arcade racer.
Spider-Man 2 (PS2) - One of the best superhero games. The graphics are a bit dated, and do look a bit grey and dull in retrospect. However, that doesn't make the gameplay any less good. The web swinging hinges on momentum, forcing you to time your swings and navigate and think as if you were Spider-Man. Couple that with a surprisingly good combat system (which bears some similarities to the Batman Arkham games), and it makes the game a joy to play.