The wedding industry is an interesting one in that many business owners came from vastly different fields. I personally know many wedding vendors who previously worked in law, finance, real estate, education, and more. That career diversity, combined with the fact that there aren't a ton of business-focused resources specifically created for the wedding industry (hence my starting WeddingIQ), means that many wedding pros rely on more general business advice - advice which may not be particularly applicable to what we do.
One of the biggest differences between wedding services/products and the services/products in other industries is how we go about effectively selling them. By nature, everything wedding-related is a luxury expense (some more so than others), and the event that's being celebrated is uniquely emotional and incredibly important to our clients, their families and their friends. As such, a lot of traditional "sales" advice just doesn't work.