Like others, whenever I'm going out of town I get the "Disney again?" line from some co-workers. Of course, also like others have posted, whenever anyone at work is planning a Disney trip, guess who they come talk to?
In my case, my DD is a CM at WDW, so I usually just tell people we're going to visit our daughter in Florida. Of course, last year DW and I also went to London for a week, and we're headed to Paris in early May (including DLP, of course -- just wish DVC were there!), so most of my co-workers just know I like to travel a lot.
And for those who always blast how expensive it is: once you own DVC, your accommodations are pre-paid. If you have an annual pass, your park entrance is also paid for the year (granted that's a good hunk of change, but try buying NFL or NBA season tickets -- and what about the price of a hot dog or beverage in the average sports arena?) For the level of entertainment you get, a WDW annual pass is pretty economical, provided you go enough. Which means the more you go, the less expensive per day it becomes. So, by your third or fourth WDW trip, the average cost has come way down.
Transportation -- especially airfare -- keeps going up. But with frequent flyer programs (and judicious use of rewards cards, dining programs, etc.), by that fourth trip you might just be getting the flight for free. So when folks say "again?!?" I usually say "But this trips's already paid for. To go somewhere else would cost me more!"
