I like to consider things when helping a client produce their meeting, that will help make the meeting better and acheive better results. The following article is worth reading:

Real Business Case For Incentive Travel
Texas Roadhouse CEO Continues to Champion Bottom Line Value &
R.O.I. of Team Building Retreats & Incentive Travel.   http://ow.ly/1zKqn 
Why not use some form of team building in all your meetings and events? I can't think of a better way to engage participants into the learning process 

Remember, however, that this must be well thought out. strategically planned and produced and not done as a last minute "let's just put this in". Quality event production no matter how simple it looks, takes strategy and extensive planning.