Amazon is problematic simply because they refuse to let you filter searches, and stop the ridiculous co-mingling practices.

Newegg so far hasn't done either of those things, and I simply select "Sold by Newegg" as the only options I'll consider when looking.

I also get annoyed at every damn e-store now being a giant import of some silly bazaar database - but at least Newegg still gives you the ability to ignore it.