well said datou, i am 1, 2, 3 and 4 all at the same time! As you rightly said, it is all about the service... and the feeling...if you are have the time of your life and do not want to go home, you tend to slide to the 3rd and 4th category.
but then again, it doesn't mean the Cat 4 guys dont have fun...it is just a different point of view and of course, $$$$ !!!