There is a reason Leicas,Nikons and Canons just keep going. The high quality of metals and other materials and quality control, which also has a cost. My experience with cameras is that buying cheap is more expensive in the long run. I have had some of my Leica cameras for over fifty years. Finally decided that they need a cla. All in all, much cheaper than a less expensive, poorly made camera.
The good news is that many quality cameras of all formats can be bought for a tiny fraction of their original cost. I bought a replacement for my Nikormat (meter died) for way less than a $100 from a reputable dealer. High quality construction, built like a tank. For bargains just stay away from the big bay when dealing with anything that has a moving part.