Another good thing about having a LOT of miles is if you have a relative or friend who needs a ticket right away you can GIVE your miles in the form of a ticket to them on some airlines.
I think that's a great thing about having a lot of miles... if you have a friend in need you can help them out.
And Randy: OK, I will change my itinerary if you will be there to greet me when I return from my world journey!!!