Exactly my thoughts.
Since the first lockdown motorhome sales (and s/h prices) have rocketed.
I had to stay on a commercial site where a pitch was available rather than where I actually wanted to be.
I've never booked/planned ahead when going abroad and have rarely stopped on commercial sites. I like the freedom of being able to just drive off the ferry and wander, overnighting 'wild' or pulling in to an Aire de Service or Stellplatz.