Actually, the best burger in Vegas WASN'T an In-and-Out (not by a LONG shot) -- the best burger in Vegas was at a little mom and pop's operation (voted best in the city for many years while we were there) -- I can't remember the name and a friend said they actually finally sold the business (mom and pop retired) and I the new owners went belly-up. It was a shame!
I really don't care what you lick WOW, go eat at the In-and-Out burger in Vegas -- not the greasiest that I have ever eaten but definately greasier than ANY McD's that I have EVER had! You can blame it on a lot of things -- and since I've never eaten at any other In-and-Out establishment, I really can't say -- but there were FOUR of us who went in and ALL of us came out with the same complaint. Go lick on that one for a while (in between your other licks).