That's not the point. The whole thing is botched at the start. Why were these people buying linux netbooks over windows in the first place ? Did they just click/pick up on the cheapest option ? Was it the first one on the list ? Did they *want* linux ? Did they want to 'take a shot' at linux ? With all returns mixed into one category, you can't make ANY conclusion with regard to returns due to 'unfamiliarity and unwillingness to learn', just a subjective guesstimate at best.