I have both (wow, never got to say that before!) and the 96 is more 'useful' as an every-day machine, plus...yeah, the "Have a Coke" light is really cool as Kilroy points out.
Now...my 96 is a 96-e, so it's a square-top but the multi-vend and the light-up sign are pretty sweet. I do love the look of the V-80 though, and the fully automated function is pretty sweet too...drop a dime, get a Coke. No buttons or knobs.
If you do decide to go for the V80, let me know. I wouldn't mind "upgrading" my 96e to a round-top version.