I actually remember visiting your site at one point, and I think this is a case where going through a seller is a net advantage :)

I see it not really on the "shopping" experience, and more as you point out because as a buyer I'd need/want way more information than what Amazon will ever provide on a single page, and also because there is a context surrounding the product that is far far away from a "just buy" transaction.

I also see some hobby sites like Bricklink as something Amazon will never be a replacement of. Fundamentally I think specific seller sites are needed.