You ask them point blank and say how well is it selling. I had success calling Costco's and telling that i'm interested in buying one but i'm not going to buy anything if it's not selling. I have received a lot of data over the last 6 weeks and this thing is really taking off especially with xmas. before the holidays I was hearing 6-20 a week. Now I'm hearing 50-70 a week... This is the most undervalued company with off the chart growth. Take a look at Hans and see where they were trading when they put up 60 cents a share/