I recommend Newegg to anyone on Continental USA. They have exhibited good service and excellent prices to most ATers.
Hence, the huge popularity on Anand Tech.
But for us in Hawaii, thank goodness for "COSTCO" because when they have an online sale, it also applies to their local stores.
It means you don't have shipping charges to add to sale prices. No matter what the item's size is, we pay what any other store's patrons pay.
We in Hawaii can't get Newegg items because of super high shipping charges. Costco has a better service in IMO because their return policy is no fault. If Costco doesn't have it, then Mwave is the next choice.
If you think Newegg will fall by the wayside, well only time will tell.