As a consumer, I primarily care about one thing: The lowest price.
I don't owe it to megaconglomerate big-box stores (or anybody else) to pay a higher price if a cheaper price can be found elsewhere.
I personally don't feel that being able to play with a TV in-store and having some ignorant 16 year old employee try to upsell me on useless junk like extended warranties and $100 HDMI cables is worth paying a few hundred dollars extra for a TV.