The earlier post for sleevecity
is where you need to go, buy in bulk. I just bought 100, so w/ shipping, it only cost $1.09 per case. It's great if you have a ton of stamps or you can split the cost w/ friend. The nice thing about the Super King DVD cases, they are more eco friendly so I have no qualms putting the hubs in the recycle bin. When at the sleevecity site, there are many DVD cases on the page, you want the SUPER KING DVD (not slim and not any other type as most DVD cases are all one piece and you can not remove the hub).
I originally wanted the Stampendous Stuftainers, then the SU cases but they were just not cost effective enough for me (outrageous shipping fees + tax over twice what I pay locally). I just bought the Super King DVD cases. I think I'm going to be very happy once my storage rack gets here.
PS - I have shopped at sleevecity years ago for other stuff - they are very reputable.