The moral of the story? If you don't want to be bitten by a vampire, you should carry AT&T, because they prefer the additional coverage that Verizon Wireless provides. All joking aside, I get the point of the commercial. The vampire is the consumer, and he makes the choice to "bite into" Big Red over AT&T. A funny commercial, and it even pokes fun at a certain vampire story.
Check out the video below.