I like Newegg, but only if I can get a better deal on what I might want to consider purchasing. Sometimes I have purchased items from
www.directron.com. They offer testing on certain items for a small fee and are both a retailer of computer parts and a custom build shop. Sometimes their prices are a little higher.
When ordering items try to pick items with the best or no shipping costs. This might mean going with a different case. Sometimes if you just wait a while you can find something that will go on sale. For instance maybe father's day will bring a good sale. I suggest signing up for their newsletter. Sometimes they have sales info or coupon codes in the newsletter.
I think a key point is to be flexible and not be stuck on buying one specific case if another case is on sale with free shipping. Shipping a computer case can cost over $15.00.
New egg is a big company with multiple warehouses so naturally the ship from multiple warehouses. Often even an order from amazon is dropped shipped from another store. Amazon frequently is using their name to sell stuff for other companies. They get more traffic by selling things at amazon. When it comes to TV's amazon has a tendency to mark them down quite a bit.