Deal sites are all about achieving leads so shouldn't their MVP be a nice website with a way to show your interest by opting in? Amazon's brand will play a huge part in getting sign-ups, especially since they know our shopping habits.
I totally agree, but I expect more from an MVP from a company like Amazon. For instance, that "Munch" YC company at least had a couple deals in the bay area to peruse. Ultimately it is no big deal, I love Amazon, was just surprised there was almost no content to entice a user.