I used to play my old PS1 occasionally for Harvest Moon BTN, Digimon World (the first digimon game), Digimon: Digital Card Battle, and Crash Team Racing. But then when it came time to clear out everything (I had a ridiculous amount of games, the majority of which may or may not have been pirate copies) I sold off all of it to a mate of my brother bar Harvest Moon.
To this day, not a month goes by where I havn't booted up the PS2 to play either Harvest Moon (backward compatibility ftw) or Star Wars Battlefront 2.