Anecdotal evidence against anecdotal evidence against more anecdotal evidence. There is extensive market research on the distribution of brands. People estimate

Anecdotal evidence against anecdotal evidence against more anecdotal evidence. There is extensive market research on the distribution of brands. People estimate proliferation by analyzing user agents of web site visitors, surveys, sales numbers, and more -- and even those numbers often vary greatly. Guessing the distribution, or even forecasting a trend, based on your analysis of the 5 people sitting next to you in a café or how many Mac Stores exist in your vicinity doesn't contribute to the discussion.