Take your pick. Plane, boat or RV ownership is tough to justify for the vast number of owners who seldom use their toys.
Never owned a plane but still have a 32' boat that we used to get about 40 overnights a year aboard. That is an awful lot for non liveaboard boaters. The boat has been dry stored ever since getting the RV which gets over 150 nights on the road each year.
We are travellers running up well in excess of 12,000 each year. Daily operating/travelling costs average about the same as a suburb mid cost hotel plus the annual insurance, maintenance & maybe upgrade costs of under $4000 PA.
The enjoyment we get out of it? Priceless.