What it really comes down to is shipping cost. In the U.S., depending on your area, Mistking shipping can run up to $40. And it's not because they are ripping us off either, that's just how much it cost. There are local retailers who sell the Mistking stuff, but I have not yet seen them carry the $100 dollar model. Also, the Auquazamp package comes with some extras like a screen wedge and reservoir. Both seem to have similarly ranked quality. You just have to do some balancing to figure out the best way to do it. If your looking for their cheapest models, Auquazamp + shipping might come out cheaper and have some extra accessories. But, if you are looking for the mid-range model you can pick up a Mistking at LLL and there are no shipping costs. So if we can agree that quality is the same, it just comes down to individual needs in order to get the most for your money.