The time that goes into a wedding as the DJ

Just showing a small part of the process of meeting with a bride before the wedding. By the time this wedding ends in August 2016, I will have spent a total of 28-31 hours on the wedding (meetings, driving, setting up, loading in and out, prepping, and being the DJ that day), more goes into a wedding than it may appear; at least for professional vendors. How much do you put into your events?