The latest vintage camera buy--a Yashica Electro 35. The Electro 35 is a rangefinder camera, first introduced in 1966. I like the cheap price, $10 on Ebay for what was once a revolutionary camera.
The Electro 35 features a light light meter that remains active as long as the shutter is open, so if during the exposure the scene happens to darken or lighten, the exposure control responds. In addition, it is an aperture-priority camera which means you set your desired aperture/depth of field, and the camera adjusts shutter speed for you. There are two warning lights on top of the camera to help you with this.
All in all it is a pretty cool first rangefinder.