I have to disagree with you on that point. Paul at Swancraft spent ages showing me as much as he could. Floor hatches were lifted, he showed me the fuses, trips, explained the inverter and showed me where it and the batteries were, he even pulled the gas cooker out and checked the connections etc. etc. Then he took me out onto the river and showed me how to moor up. Perhaps it would have been different if we had bought from one of the larger boatyards, I can only tell you how it was for me.