I keep 'em all. I used to trade away the one's I didn't like, but as my BAAGS syndrom has gotten worse, I now horde everything! I don't like to store them away, I like to display them on my bookshelves. So I've got all the shelves full, and now I'm just stacking them on the floor in front of the book shelf until I can get out to buy me another shelf.
It's funny - I'll have friends over to visit, they'll see the bookshelves full of video games, and they'll go up and take a look. And they NEVER recognize any of the games. Why? Because they don't play Adventures. They play all that other stuff.
BTW, Peter, CONGRATS!!