[ggrot]

This is pretty old news. Amazon experimented with this briefly, caught alot of flak, and stopped.

I recently had an experience where I thought amazon was doing this - I'd get one price when signed in to prime and another cheaper price when not signed in. I called up amazon and the rep was astonished as she could see the exact same thing. A few minutes of digging and she figured out what happened. Amazon was showing me signed in the item shipped from amazon (candidate for prime) and showing me not signed in the item shipped from someone else. When shipping was added in, Amazon was always showing me the lowest price available. In both cases, I was presented an option to choose a different supplier, but it wasn't very prominent on the page.