Agreed. We're in a boathouse in Port of Everett and it is common that the boathouse is worth much more than the boat!
Weeeelllll, not so true post-2008 financial meltdown. Boat houses in Everett could be had for a song, and remained a scourge on the market for years. And woe betide the Everett boat house owner who's boat house won't fit into the Port's "Master Plan". Bye-bye. In my opinion (IMHO), owning a boathouse is like owning two boats simultaneously. Both come with pros and cons, and both come and go, often at differing times. Owning a boat house that is too small to satisfy your "two-foot-itis" itch gives you THREE floating assets to deal with simultaneously. One you no longer want, one you do, and one (if it's too small) a PIA to deal with.
Boats and boat houses are illiquid assets, and can become albatrosses around your neck, often for reasons out of your control. And to assume a boathouse is an APPRECIATING asset is not wise, as there is a VERY limited market. And to assume they're maintenance-free is hopelessly naive. Lucky is the house owner that hasn't faced marina-mandated float inspection and replacement, electrical issues, siding replacement, insurance issues, etc. And these days, one can't simply up-anchor and move the silly thing, should marina preferences change, or a buyer want the boathouse somewhere else. And although it's obviously easy to fit a boat into a larger boat house, it's not so easy (usually impossible) to squeeze into one that's too small. And too-large boat houses are EXPENSIVE.
COVERED moorage, however, is much more likely to be a leasable asset from the marina. Therefore more likely to be significantly more liquid, should circumstances change. And while a boat house provides an unsurpassed luxurious home for your prized yacht, boat sheds are a close second. Taking a long, hard look at the financial implications of boat house ownership is well worth doing pre-purchase. And should you find one that fits your boat, in your mariana of choice, that is available for long-term lease or rent, you've truly found a unicorn.
Having owned boats in and out of covered moorage in the PNW (sheds and houses) for decades, I vastly prefer a boat house. But, as I'm not financially in that stratosphere, I find myself typically in a leased boat shed. Like all things maritime, everything's a compromise. You pays your money, you makes your choice.
Regards,
Pete