@Apple fanboy and I think both know that, as photographers(or at least I can pretend to be one), even without actually overtly manipulating a photo it's easy to use lighting and the like to "hide" problems or draw your attention away from problem areas. I've noticed this a lot with many dealers, and I've especially noticed it with some higher profile classic car dealers(after seeing online listings vs. what the car looks like in person, I would never buy a car, in person or otherwise, from Gateway Classic Cars).
I HAVE bought cars sight unseen before, but at the same time I did spend a lot of time "buying the seller." Weirdly enough, a description that spends a paragraph telling me the good things about the car and 3 paragraphs describing every issue the seller is aware of is more reassuring to me than 3 paragraphs telling me how great it is. To me, I'm more comfortable buying something from a distance from a private seller than I am a dealership.
One resource that I have used, and this may not be possible depending on what it is, but if you're buying a classic, it's worth trying to find someone local who would be willing to look it over for you. When I bought my Marina, I actually called a contact in the same state(Delaware isn't a bit state) to see if I could get him to do that. That phone call actually rewarded me with a history of the car back to the mid-80s since the person I had called had been the one to put it back on the road then and had owned it up until he sold it to the person selling it around 2009.