That of course is a good point, but if there had been more lifeboats on Titanic, there's a good chance that many could have been floated off the ship as it sank, and passengers could have climbed into them. This isn't a practical solution, but one that should be considered, since 30 men climbed onboard a overturned collapsible boat floating in the water and balanced themselves to keep the air from escaping from under it. They were later rescued by another lifeboat.