What camera did you get not expecting much but you decided to check it out and were pleasantly surprised?
For me, I have a couple of mentions:
1. The Kodak Reflex II 620 tlr. Yes, the external focusing gears are kind of primitive, the screen is dim and you have to re-spool 120 on to 620 spools, but the lens is great. I even bought another one and using a post on Flickr that had instructions on dissembling and cleaning the shutter did my own cla.
2. The Kodak 116 film folders from early 20th century. I bought a Kodak 1A Autographic Special from 1917 and No 1A Pocket Kodak from 1926-1932. It's easy to use 120 with them and they have taught me that plain glass lenses can take great shots if you're careful in regards to flare.
The third image is from a No. 1A Kodak that I shot with slightly expired Velvia.