I have listed a large collection of laserdiscs on eBay.  Many of them are sealed and new.  All were incredibly well taken care of.  For any open discs I will inspect prior to shipment to make sure there is no laser-rot.  I discount S/H on multiple items.  Buy more and save on shipping!!!  Given how long it's going to take me to list all of these, please feel free to reach out if there is a particular title you are interested in.  I can see if it's in the collection and post it quickly so you can save on the shipping costs.  Thanks!