Hello;
Buy what ever appeals to you! Personally I like a SLR with a viewfinder and a prism. Currently own Kiev 60's and Mamiya 645's. I love both but you need to be aware of the problems with used camera's. Light seals and interior flocking seem to go on a camera that has age on it. Then how about a CLA? I would buy from a dealer that will stand behind the equipment. Maybe he does not work on the stuff but you have the option of returning the camera or lens. I you are handy then this is not a problem! Reflocking and seals not that difficult. With some tools and manuals performing a CLA can be done! Steven.