6x6 and 6x9 medium format folders have got to be the best kept secret in photography. If you can settle for the mid-range lenses like Novar, Apotar, Radionar, etc., you can get some excellent pictures if used properly, for very little money. Most people go for the Tessars and similar lenses, but in actual use, unless wide open, the difference is really marginal, if there's any at all. Plus, they are compact, and so simple that they are pure elegance. Despite having been doing photography since the early 1970's, and even before that using Instamatics and Polaroids, I can't say I had ever noticed or even heard of these MF folders until fairly recently, thanks to the Internet. Oh, I saw some in used camera shops sometimes, but I always thought they were just useless antique cameras. With today's films, they are anything but, and terrific fun to use. The beauty of these folders is the mechanical simplicity. Truly, they really live up to the concept of the camera as a holder for the film and the lens/shutter. Unlike TLR's, which are very complex beasts, prone to jamming that can send them in for expensive repairs, folders are dead simple, and little can go wrong with them. Moreover, the simple leaf shutter are fairly easy to have fixed if they do break. I have a cheap folder I paid only $30 bucks for, along with a cheap Holga, is the best fun I've ever had in photography. That $30 folder is a genuine, super nicely-built Zeiss-Ikon, with a Novar lens, and, believe me, it looks like it just came out of the factory brand new, and it makes a 6x9 negative that, with today's films, is as good as large format (it's not that much smaller, really). Now, if I could just ever afford to buy myself an Epson 3170, I would be in photography heaven with this and the Holga. I have a enlarger for 35mm, but upgrading it to handle 6x6 is cost prohibitive right now. Why so cheap? Because, I bypassed the Ikontas and the Tessar lenses, and grabbed a Nettar with Novar lens and simple Vario shutter. Also, no rangefinder, just guesstimate scale focussing - but that's part of the fun! I zone focus and make maximum use of the depth of field scale. No meter either. There is an undescribable satisfaction in nailing a picture with one of these, that is totally unlike the robot-like use of the modern autofocus 35 mm camera.
Get one and enjoy photography again. There are plenty out there. Look for Zeiss-Ikon Nettars and also Balda (Baldax), Franka (Solida) , Agfa (Isolette), etc., no to mention simple box cameras like the 6x9 Agfa Clack and the 6x6 Agfa Click (not folders, but still very useful and fun to use).