What an amazing labor of love to catalog all these machines. Some of the stories behind each individual machine are amazing. I remember when Fry's Electronics (was it Palo Alto or Sunnyvale?) had one on display.
Man... tangentially, is there a coffee table book about Fry's yet? I remember in the dot com days they had a lounge pianist there as well as a cafeteria? And also, oddly, adult magazines by the check out lines.
Don't get me even started about Radio Shack :'(