Well mainly because my g/f has family in Houston so a day trip would allow us to dive and still spend time with them. I also figured it would be a little cheaper. $400 per person is a lot to me considering I can get as many dives in the carribean for half that much. Because of my work travel, we rarely pay for airfare or hotel because of the points I earn. For $800 we could pretty much dive anywhere in North/South America for a week. Also, my g/f loves diving but she isn't the type who would like to make an entire weekend out of diving and for her being on a boat that long might be too much ocean/diving/divers.