I agree.
Usually I shop around, Rock Auto, the Big 3 parts stores, even e-bay!
I am in the process of fixing up a Cherry '01 Catera for resale, the A/C was shot, got a new compressor for <$100 on e-bay, new Receiver & Exp. valve for $26.00 on e-bay, but once I changed those & started filling the system, a High Pressure line started leaking.
Very hard to find part, >$300 @ Rock Auto (only one I could find online), even over $100 at the junkyards.
Finally found a used one on e-bay for $50 shipped. Never occurred to me to check Amazon.
Anyway, got the line & got it on, A/C works flawlessly now, just that the used line looks out of place amongst all the clean, shiny engine parts.
So the other day, I punched in the Part number at Amazon, NEW line, in stock, $100.05!
Would really preferred a new line than chancing a used, but whatever.
Darned betcha I'm going to check Amazon from now on!