And that's the trick: I'd buy from NewEgg based on their reputation, not the reputation of some company I've never heard of. Back in the day, if I bought from Amazon I assumed (probably incorrectly) that it was somewhat curated. With 3rd-parties, NewEgg is no longer a trusted vendor, they're just a big ol' barrel of random shit that I have to try and fish through to find what I want. Amazon is just a big ol' barrel of random shit where I hope to not get tricked. Is that really the reputation you want, Amazon? That I wander down your virtual aisles constantly looking over my shoulder?
I "prefer" a vendor because they have demonstrated that they "carry good stuff". These days, hell, even they don't know what they carry.