I don’t know if it’s a majority at all. I think there are quite a few people (like me) who have purchased a Burke and didn’t care for it. I’ve been too lazy to sell mine, admittedly, but I probably haven’t put in five minutes playing it in the last two years.
In my first-hand experience seeing people play, Burkes are less common than Susatos, O’Riordans, or Generations. And locally almost everyone has tried Burkes, and lots of people purchased one – but only one or two people play them regularly.