Comes down to being "a boat person" or a person with a boat. Go with what works for you. When we built I was using an old Ebbtide on loan from my father-in-law. I hated leaving even that outside. Spent a little extra for the three car garage. Now I wish I had made the third stall about 5 feet deeper. This works, but we just seem to keep finding more stuff we can't live without.
I think of it as leaving the car outside with the windows down and a tarp over it. Always makes me cringe. Also, this thread makes me throw up in my mouth.
The cost to put that Supra right could've paid for a cheap garage.