I have a lot of cameras but the cheapest one is my Lubitel 1 which I bought from eBay for 20 Euro. I love working with Lubitel 1 because it's a very meditative type of camera as it needs some time to set up. A time for me as well to live that moment when I'm taking a photo.
I love twin-lens medium format camera, vignette and the effects of the lens on the exposures especially with expired 120 roll of films.
A beautiful photo is not always the result of an expensive equipment but rather a great idea with a good sense of aesthetic.