The idea is not to play some ancient game again, but rather to convince developers that there are no technical reasons why they can't write modern games. For most people out there an amiga is an A500 with 1MB of RAM. A port of Quake 3 is just a ludicrous idea. However, if people can say "see, here's a port of and I can get 70FPS on my new Amiga", then someone will eventually release a new game and others will hopefully follow.