Braid was Freaking amazing!  It was definatly the best and most emotional arcade game I've ever played.  The music was awsome and the puzzles were brilliant.  Everytime I accomplished a puzzle after I was trying to figure it out for like 20 minutes I really felt like a accomplished something.  It was also frustrating in a good way, not a throw my controller at the wall way.  For a game this brilliant the price didn't bother me either.