Our inventory is one of the largest useful inventories in the country as we know. What is meant by "USEFUL INVENTORY" is that it consists of mostly hard to find items rather than the usual covers everybody in the country has. Unlike others are majority consists of about 1990 and newer and all of our older inventory has either diminished or has been scrapped. We have been in the same building now for almost 20 years. Our website was built to help move our vast inventory and will usually show more purchase options than most out there. A common problem most find with shopping online is that unlike ours most sites simply state "call for availability or price" whereas we try to be sure all items listed are available for sale and that our price online reflects the actual price the customer will pay. Our shipping is Free and unless you live in Wisconsin you also do not pay sales tax.