Good point. The difference being that "last mile", where I feel the transport has many more variables than a massive Best Buy truck moving merchandise from warehouse to store. It's also in Best Buy's interest to not damage the shit they're going to sell, whereas once the package is bought, and handed off to UPS/USPS/FedEx responsibility gets murky and easier to shirk.
The other major difference is my "return anxiety". If I get home and my TV doesn't work, I hop back in the car and swap it for a new one (round trip maybe 2 hours).