I encountered a similar scam... it was for the Rainbow vacuum cleaner. I saw the ad on Craigslist and Yahoo! Hot Jobs, and went for my interview, and even went to the first day of training. I thought it was a customer service job, like answering phones and stuff, but come to find out, it was a job selling a $2600 vacuum door-to-door (or what they like to call by referral, but how do you get the referrals in the first place? By going door-to-door). They pay you hourly, and you get bonuses if you sell a vacuum, but it just seemed sketchy.
Also, in the ad they said that they hire people and want salespeople to have neat appearances, yet two men in my training group were obviously missing teeth, and another guy was covered in tattoos. Nice neat appearances!
The company that sells them are Rexair.