There are many states where there are no Menards stores.
So, perhaps this is why, under certain circumstances, people are willing to buy on Ebay.
I may certainly be wrong, but I'm not totally certain that Menards will ship product directly to you.
It would be truly odd for a retailer with a regional presence, and such a large website, to require that you stop in to pick up everything you order on-line from its site.
Not impossible I guess, but I've never seen any retailer with a website do it.