Captured Audience EffectEver pay $40 to rent a 10'x10' piece of carpet worth $10? How about $100 for a folding table or $50 for a chair? Hotels and convention centers know that most people will pay a high price. That same pricing philosophy applies to technology rentals like projectors and plasma flat panel displays. Hotels and convention centers have a 'captured audience' and can charge higher prices.In-House AV Service CompanyHotels and convention centers often have an "In-house AV service com.