Too short
For a frame by frame, this is an animation that starts with low expectations, I'm afraid. I think that you've got a good concept, but it just seems to me that you bailed out before the flash could be completed.
What it needs is some colour! Once the Eku Dance Sock has been used, perhaps this would mean the guy has suddenly discovered a new lease of life and the colour is symbolic of it. Change the music to something dance like and upbeat, giving him the chance to show off his moves.
Even if you show some crappy dance moves from generations past - the twist, the bird and all of that, some break dancing, for example, it would take it further. What I'd suggest is that you get a voice actor, who can deliver such a punch, that the piece sounds like it needs to be sold, then turn it into an advert.
"Only $29.95, hurry now, stocks are limited!" Put some sort of disclaimer up there to say that the 0800 number isn't real and that you're not actually selling these things... yet ;)
I can't really mark you for having anything more than potential at the moment. Give it a shot, you can do this!
[Review Request Club]