A couple of years ago I bought a 40 year old Rolleiflex in good condition (the owner said it had had a recent CLA) and it has performed perfectly. Everything works on it, including the light meter and linked aperture and shutter speed adjustments, and the flash synchroniser (although I don't use it, as I like natural light). The lens (3.5) is sharp and gives good colour rendition. I paid around GBP 400, a modern version, almost exactly the same, is now being produced for GBP 2,000+, so second hand is the way to go.