I've always had a fascination with rangefinder cameras. I wish I could afford a Leica, but being so invested in digital stuff, I cant justify the cost right now. I'd like to get something fully mechanical, no electronics and whatnot. I dont really know what to look for... I was checking out some of Zorki's and they're super affordable. What can you guys tell me about some old Rangefinders I can get for ~$150 or less?