Apple says: Tiger users could upgrade to Snow Leopard for £25 - but mustn't

Spend £129 on the "Mac Box Set" to upgrade from Tiger to Snow Leopard - or £25 on the Snow Leopard disk alone? We finally got a definitive answer from Apple. Finally we now know from the horse's mouth. I met Alan Eyzaguire, director of software product marketing at Apple Europe (and Middle East and Africa) to talk about Snow Leopard, and of course the question that came up is the one of...