American wines' adventures abroad

Rules prohibiting British wine retailers from selling American wines stronger than 15 per cent, as reported in High alcohol wines – different countries’ responses, have recently been relaxed. We Brits can therefore expect to see a much wider range of wine styles sold by those (relatively few) UK specialists in fine wine from the US.
 
Considering the facts that the US is the world’s fourth most important wine producer and that the UK is the world’s most important wine importer, it’s extraordinary how few California wines selling at more than the equivalent of $15 a bottle are available...