Earlier quoted context omitted.
Compared to Amazon, MMC has a very small number of SKUs, inventory that never goes stale, and prices that are only affordable in the context of B2B transactions. It’s not a comparable service.
DigiKey eliminated everything except next day air for small packages some years ago because it was too expensive to have two different SKUs for shipping small orders in their system. B2B is weird.
But B2B is weird. If I need my employer to ship me something that I’ll use next month, I am hard pressed to get them to ship slower than 2nd day air.