Not sure if this topic has been done before, if so, lock and link.

Ever find a common game in the wild (for a good price) that just made your day?

Back in May I found Double Dragon II NES for $3. It really made my day. I been looking for it but it was always $5 and I just felt like I could find it cheaper. Then one day, unexpectingly, there it is. And it made me feel good about holding off... otherwise I would have seen the $3 copy and have that "bummer reaction."

What common game(s) did you find in the wild that, for whatever reasons, really made your day?