I think that might've been true a decade ago. Now I think it's Best Buy and Walmart that are attempting to gain credibility against Amazon, no?
I usually get electronics from Best Buy as they haven't sent any fakes (to my knowledge...) and it seems that Walmart has a pretty faithful customer base
Tough to generalize based off personal experience but I think overall Amazon would benefit from more credibility and have it be a net positive.
Aren't they all trying to prove that they are more credible than competitors?