Digital photography

I always thought the professional bulk of the high end cameras was part of their appeal. You could get really great photos on the likes of a D90 but turning up to shoot a wedding having quoted several grand and pulling out something small just wouldn't cut it.

Why wouldn't it? Surely this is more in the mind of the actual photographer than the client. They have already booked you, they chose you because of the size of your camera, or having seen some of your portfolio and liking your work? Do you really think on their big day they are going to pay that much attention to what equipment you are using?