Borris, this thread is a concealed Ocean vs Coast fight, what are you doing throwing in the Beach as well?
On a serious note, I must disagree that many Oceans end up for sales after the first seasons, or it may be many , but the great majority stay with their owners because many of us do use the the sink regularly to wash face/hands, brushing teeth and washing small items, like a breakfast bowl or a mug or two. The high second hand prices confirm there is more demand than offer...
I do agree the sink is small for a proper washing up, but you certainly are not better off in a Beach. I find the cupboard and wardrobe very usable, I had to eat inside on many occasions and surely you need a bit of patience, but if I need milk I access it it easily from the inbuilt fridge, rather than having to go outside in pouring rain to open the tailgate, slide the drawer open, open the fridge , get the milk, close fridge, slide the draw back in close the tailgate, get wet again and get into the the van soaked. God forbid you forgot the butter too!
For cooking outside Beach , Ocean and any car would do, as you rely on an external stove.
The issue with the electric roof were on old models, I could counter how easier it is with an electric roof not to get the roof tent stuck outside or into the mechanism when closing.
If I do a 2-3 days trip, I fill water at home , and it will last for the entire trip. To empty the water, on the way back, I stop at the camping water facility and discharge the grey water turning a lever from inside the van (again no rain for me), instead of ferrying heavy water cans with fresh water first, and dirty water after...
It all depends how you camp. Maybe you don't need water at all as you use the site facilities all the times, you cook always outside or go to the restaurant then yes, why would you need an Ocean as the Beach is sufficient and would provide other valuable advantages as you mention, as a people carrier or transporter. Once again to each their own.
You point of really thinking HOW you are going to use it , I couldn't agree more.