Crash Bandicoot Nu,ber 1 what's it worth?

Hey guys I was thinking about all the good times I had with my PS1 and the games so I pulled out my PS1 and noticed that I had Crash Bandicoot Number 1 now when I saw how great the game was actually playing and how it had its manual, cover and case all intact I wondered how much people were willing to pay for the classic game itself.
Basically I want to now just around about how much its worth and I also have an array of other PS1 games if you may be interested in buying for a great price so I can be happy and you can be happy with a classic game!