I entirely agree with Marc. The purported claims made in the advertising are quite suspect as there is not quantifiable evidence provided with the claims to back up same. Not to say that they are not available, but where? I'm not for one second discounting the potential problems with problem drywall and I will agree with you education is key and relevant; but the verbiage used for this education runs on the edge (any possibly beyond) of being hype. Your reply comments about housing construction and a "BOOM" in Texas is, candidly, along the lines of the two-day seminar 'hype'. New home construction and existing home sales in Texas is definitely not in a "BOOM" cycle. Granted Texas has not been hit as bad as many other states, but it is still not what you are labeling as a "BOOM".