I would think long and hard about this before you get rid of them. Very rarely have I let anything go and not regretted it afterward--not necessarily right away, but eventually.Yeah, I'm trying not to make it a spur of the moment thing. There are some games I'll never sell. Like my complete US Guardian Heroes... I'm keeping that forever. It's my favorite game of all time. But stuff like Batsugun and Garegga? I just can't stand to play them on anything other than a TATE'd CRT.
If there's even a hint of possibility that you would ever want them again, don't get rid of them. It's not easy to get (key) Saturn games as it is, and it will only get more difficult as time passes.