We used to have a static caravan on a site a few yards from the beach.
PRO
Relaxing, Therapeutic (Kept me sane when work was heavily pressurised and totally boring)
Relatively low cost holidays.
You choose when to arrive or to go home, which can be convenient.
Available whenever you feel like, and can have, a break
Little or no extra furniture / equipment to buy.
Just open the door, climb in and relax! makes for fantastic times together.
Easier to access attractions than from home.
CONS
Vans can be expensive to buy!
Not your own boss
Cannot use all year.
Site rent, at the whim of the owner
Electricity prices ditto.
Power consumption limited (Ours was the equivalent of a single 13 Amp socket) Blow the trip and you inconvenienced a lot of others and made yourself unpopular with the site owner / warden
Gas bottle prices can be high, on site.
Some sites stipulate a ten year life for a van
Vans can only be sold or bought through the site in some cases.
What did we do?
When the costs began to match those of a local residence, we sold, with difficulty). Lost a lot of money, 90% of the purchase price.
Happened to find someone selling a very small bungalow, by avoiding agents fees, we got a good deal
We are our own masters, can use whenever we like, and lend to family or friends. gas and electricity prices are the normal commercial rates, not inflated.
Second home owners, whether caravanners or owners tend to be denigrated, but they do bring income to the locality.
IF you can afford it, bricks and mortar represent a far better investment,