Newegg still benefits simply from you doing business with them. Presumably they are not using a loss-leader strategy - so every sale is still profitable.

There are a lot of vendors out there, it isn't generally feasible to price shop all of them for orders of more than one or two items. So the fact that they are merely on your list of vendors to consider is a win for them.

I dont, as I've had a bad customer service experience with Newegg. But it was only once, and they did budge once I contacted google "trusted" stores team.