Playland doesn't sit far from the ferris wheel on the Santa Monica Pier. And it's open on both sides to the ocean air. When you need a break from Centipede (or Skee Ball), you can step outside and feed the seagulls (the cries of which add to the feeling of timelessness). The arcade is open seven days a week.
(By the way, the carousel building in the foreground was featured in the classic '70s film "The Sting," with Paul Newman and Robert Redford.)