A prime tenant of marketing is "Control The Message." For whatever reasons they have, by not addressing the Galaxy Nexus, it doesn't exist in the eyes of most consumers.
A Razr on a pedestal near the front door, surrounded by flashy graphics and an over-the-top marketing campaign will let Verizon meet their sales goals -- lack of options (aka avoiding forcing the consumer to make decisions) increases sales.
"Buy This" sells the phone. "Pick one of these three" creates doubt, causes consumers to reconsider their purchase, "go home and think about it," research their options, wait for something better, etc.
Hell, if I only had Verizon to glean information from, I would have bought a Thunderbolt nearly a year ago. Or a Revolution. Or a Bionic...
(...instead I stuck myself with this stupid BB Storm! :/ )