I haven't had what I'd call a "real" vacation since the mid 90's when I went to London and Edinburgh for two weeks. Almost everything since then has been long weekends or taking a random day off here and there.
I've promised myself that after I retire, I'm going to go back to Europe for at least three weeks (if not open ended), and when I do, I'm going to go at least first class, if not get one of these private suite type things.
Yeah, it might be five figures just for the airline ticket, but after 20 years of mediocre vacations, I figure I've earned it and am going to splurge.