In the Jan '23 newsletter from RS at https://www.ricksteves.com/watch-read-listen/read/travel-news it says
We've filled about 60 percent of our 2023 tour seats and it's fascinating to see which corners of Europe are pushing travelers' "must-see" buttons. If you haven't yet decided on the trip of your dreams maybe this slideshow will inspire you.
It then has a link to https://www.ricksteves.com/tours/tour-news/ricks-top-10-tours
I'm curious about what this means. Do you think these 10 are the tours filling most quickly? The tours with the most space available? Or just his favorites without regard to sales?