Same. I needed a 6-terminal bus bar, with a cover, for an automotive wiring project. I found one on Amazon, but I really needed it that day (was balls-deep in a wiring project).
I drove to literally a dozen local places, including Home Depot, Lowes, O'Reilly's, AutoZone, Napa, Ace Hardware, several mom-and-pop hardware stores, and a handful of local car stereo shops.
Nobody had anything close, and I just had to wait the two days for an Amazon order.
I'm trying to be a conscientious consumer, but none of you have the shit I need, even when it's a category of niche item that you specialize in.