Motivation
I once read that "there was no man better motivated that one with a hand pump on a sinking boat". Ditching in the water is a last resort, take your precautions on land by checking and servicing thru the hull valves, hoses and clamps. You can check the back of the clamps with a mirror. 2 clamps per fitting. Check packing gland. Always carry wood plugs for the corresponding size of the through the hull and tie one to each valve with fishing line. Pieces of canvas can be used to patch holes. The installation of a cockpit manual pump is also advisable. If you know your boat and have materials and tools on hand it would be very hard to loose it. Even if you are dead in the water the best chances of rescue are staying with the boat. For coastal cruising an inflatable can double as a dingui and a raft, but only as a last ditch effort.