This groupon flight deal would make an amazing worldwide ski trip! A pair of tickets to fly worldwide (North America, Asia and Europe) with 10 stops for $10,000 (that's only $5,000 each person!).
Pfffft, Economy class, Pleeeeease.
$20,000 for business. I think it's a pretty good deal. Just a few years too soon.
Many airlines offer around the world tickets. Traveled a bunch 2 years ago and recall them being somewhere around $5-10k. Usually you have to keep moving in generally the same direction by continent though, clockwise or counter.
When I bought a round the world ticket (europe, asia, oceania, nth america) it cost about 1500 dollars, that was a while back, but I'm sure you could find better deals than this.