I paid less than US$150 for a used Olympus Pen-S on eBay. Scale focus just like the Lomo above and without the multiple exposure. There is not exposure meter, meaning you have to download an app on your iPhone or Android and take meter readings before shooting. Sounds like a bitch?
I put a Voigtlander light meter into the hotshoe and got the exposure readings that I needed. The shutter speed is limited too, to about 1/250 a sec. Good enough to shoot a Porsche as it races by you. With a f/2.8 lens. It is not bad for use in almost all lighting situations, except maybe indoors in ambient lighting. Aperture control is also via the lens which can be a bitch. It's slow when setting exposure controls so you gotta be nimble.
Scale focusing, means you had to guess the subject's distance and dial it in. Since it has no ASA setting as it has no exposure meter, you don't have to worry about any of those.
The camera is tiny and shoots 72 frames on a single roll of film. This is probably the winning combination for me as film is more expensive now.
When half frame cameras were released, people bought into it because film was expensive. Now film is back with a vengeance (in price) and you'd try everything to make it last.
What is the camera capable of? Well just look here. Credit goes to the Photographer. I didn't take those pictures. There is also a pool of half frame photogs who are on flickr.
This is a fully mechanical camera, slow to shoot but heck will be worth a lot of money at the end of the day. So if you are venturing out to get a new camera. Make sure it is a half frame mechanical one.