Welcome to APUG. I just came back from B&H with a box of 4X5 TMax 100. When I asked the clerk for it his jaw dropped at just the thought of 4X5 film. He was very glad to see they had it in stock (so was I). I asked him if he'd been clerking in the refrigerator section or color TV departments prior to Film/Media, he didn't smile at that.
(Oh, they don't really sell refrigerators)