Yea, I have kind of a love/hate relationship with Goodwill stores. About 15 years ago I spend a lot of time searching for those high quality brands and models of vintage 70s hi-fi stereo equipment and LP records.
I guess maybe the Goodwills here in the Phoenix area are just better (now if only we could fix our daft state legislature and county sheriff, things would be perfect).
Rarely do I go into a Goodwill and leave empty handed (to the chagrin of my wife); the find of the X-10 cameras was unexpected - they were all in a plastic tub they were shelf-stocking from. I saw them, pulled out one bag after another (each bagged separately), and decided on the whole lot. Some other guy came up to me and handed me some more (which was weird - he was a customer, too).
I’ve found strange computers (media-box type machines, and once a small embedded PC board custom-made BSD firewall), as well as built my Playstation 2 system from Goodwill castoffs (which I hardly play!). Recently I got a complete GameCube system set up (our Goodwills seem to be great places for older gaming systems).
Tons of great toy RC cars to be had (I once found an MGA Tarantula for $25.00); I also find many Robosapians and other Wowee 'bots. On occasion you can even run across some good vintage 70’s audio gear (I found a real nice 1970’s AKAI turntable for my component stereo at Goodwill about a year or so ago); I’ve recently seen a few 1/4" reel-to-reel players that were in decent shape (I already have my dad’s, and don’t need another).