Some BestBuy locations are selling Segway scooters. The one in Mountain View (about a mile from my house) is one of those, as I noted a couple months ago.
Recently there was an announcement that Brammo's Enertia would be available through select BestBuy's.. here's a couple articles (below).
FWIW last time I was at my local Segway-selling BestBuy I asked the lady at the information desk. She shrugged and didn't know. It seems likely to me that the best approach BestBuy to have success with selling electric vehicles through their stores, is to make some of their stores have EV specialism.
That is.. I think they could scatter the EV's.. meaning to sell the Segways through one set of stores, sell the Brammo's through another set of stores, etc. But I think that would not work too well. I think if instead they selected a handful of stores who would stock all the EV's they plan to sell, that would put enough EV focus on those stores to gain some traction.