True!
My wife and I regularly go to mainland Europe, both to for holiday and to visit family. Until recently, we flew, even though I regularly suggested ferry and drive. Since the birth of our twins last year, my wife accepted that flying is just too hard, so we have gone the ferry/car route, and the difference is huge. Yes, it takes longer to get wherever we are aiming for, but we get to see much more, can eat for significantly less than the airport/flight prices, and we can take all the water and laptops we want! Added to that, the security people at ferry ports are much nicer than those at airports.
I doubt we'll be flying again.