I only collect cameras that work and that I can use. Most of them are Voigtlanders and Zeiss Ikons but not entirely. The most I have paid so far is £25.00 and for that I have obtained some excellent cameras.
My only criterion (apart from usability) is that they must be well made. The only cheap and nasty I have is my Kodak Brownie Vecta that I was given when I was 12.