So for the time being I own 4 (for a total of 6 in our house between 4 people).
First one is a Dahon Stowaway from 1996 for $35. Has a 3 speed Sturmey Archer hub that seems to be in perfect shape. The guy said he got it from his parents and doesn't think they ever rode it. He and his son had played around with it but not taken it more than a couple of miles.
Second is a 1999 (roughly) Specialized Rockhopper for $95. He said he bought it in 2000 and put maybe 50 miles on it. Frame is a 20.5" which is too big for me. Picked it up for my fiance to play with. If he ends up not liking it I have a labmate who needs a new bike. Shifting works great, brakes need to be played with a little but are functional and the tires are a somewhat dry rotted but are holding air fine for now.
Both seem like they could be decent commuters. I really wish I were tall enough to ride the Rockhopper, it's a great bike.
Orlando craigslist is usually nothing but "5 year old walmart bike I payed $80 for and have been keeping out in the rain for 3 years for $60" so I was pretty excited to find these two.