It's strange, but I actually have no problem doing this. I like discovering for the first time and it enhances the honeymoon phase for me. Because I have a small collection, even my favorite games get old eventually and end up on the chopping block. When I realized no game needs to be forever, I got over trying to pick the "perfect" one that will never leave. Oddly enough, I'm still very selective about what titles I bring (read lots of reviews, watch gameplay, consider theme carefully).