Ebay has indeed been very good to me. I have purchased about twenty cameras over the past year alone, and have not had a single negative experience. I finally got around to shooting two of my favorite Ebay scores last week; both are Soviet rangefinders, a FED 2 and Zorki-4, (and just yesterday developed the film; my first home developing in 35 years!) and I am completely blown away by the results. I bought these cameras for well under $100 each; both look as perfect as the day they were made, and as it turns out, they are also functioning as new. Difficult to believe that the photographs are from cameras built over a half century ago!
I had another very positive Ebay experience just a few days ago. Rather astonishingly, I won a mint early 1950's Ensign Ranger 6X9 (120 roll film) folder on Ebay for $5. Yup, 5 bucks! It's mind-boggling that no one else would want to bid on such a beautifully flawless medium format camera!
So yes, there surely are endless online deals to be found. My list of Ebay successes is long, and I will continue to buy with confidence!
Glen