For a limited time, many of the RS guidebooks are on sale for as low as $1.99 on Amazon. https://www.amazon.com/s?k=rick+steves&i=digital-text&rh=n%3A154606011&s=price-asc-rank&qid=1650282334&ref=sr_st_price-asc-rank -
Most of them were published in 2019 and 2020, and I imagine that they are clearing the way for new ones to be published this year sometime but if you use Kindle guidebooks, it's a great deal!