One of my absolute favorite places in SF
I always make it a point to stop in at Musee Mecanique when I'm in San Francisco. Most of the machines are either 25 or 50 cents, and they do have change machines on-site. The machines range from fortune tellers that dispense cards with readings on them, to various piano and mini-orchestra machines, to modern-day video games. My personal favorite is the "Bimbo Box," which features a monkey band playing along with classic Tijuana Brass tunes -- it makes me laugh every time. My only complaint is that the new space at Pier 45 is more sterile-seeming than the old (and tiny) space tucked underneath the Cliff House, which always made it feel more like a (literally) hidden gem. Then again, I think the Pier 45 location is bringing in more people, which is great, since this is such a fun place. A great value, a fun experience, and worth repeat visits!