In the company I currently work for we have regular trips for the entire company. These are made to help team building, which they always do! Lost of drinking talking, and to prevent it looking like a beer fest some presentations about the company planning.
One of the major drawbacks, other then the amount of money it must be costing, is the risk of illness. In our most recent trip a few people had a cold. As you can imagine by the end of the two day trip over a third of the people have a cold. Which is not something the management wants out of these trips.
So are these trips a big risk in getting the masses ill.