Once the smaller boat is secured, the flooded garage can be drained in just three minutes, reducing the weight the yacht’s pair of massive 1500kW engines has to push around.
As for pricing, if you have to ask you’ll want to just move along. This isn’t the kind of toy you order at your local boat show. It’s the kind of thing that’s custom-built and delivered to anywhere in the world you need it. But with capacity for 13 crew members and 10 guests, maybe you can find 22 friends who are willing to split the cost with you, and then work out a sort of time-share deal. Just remember that fuel costs alone are probably more expensive than just the speedboat this massive craft is designed to accommodate.