Yeah, I thought $180 was pricey, too. It's the M/V Valentina. They charge $30/day for everything except computer (extra $10/day) which for 6 days comes to $180. That's why I'm considering this. I think it will work - I've tried and I can get everything into my carry on except the BCD. I'll wear the BCD (of course removing it and putting it in a bin to go through security, as we have to do with any jacket) and stow it overhead in the plane (again, as most people do with bulky jackets). If TSA doesn't have a problem with BCD's in carry on luggage (which many people have confirmed for me they don't), it should work fine. As for the poster wondering why on a liveaboard, actually I need much less stuff on a liveaboard than a regular trip. Mostly in bare feet and swimsuit all day, so fewer clothes necessary. No dress-ups, just t-shirts & shorts.