Having done both extensively I feel that Club DJing is a personal expression of my style/skills and Wedding DJing is a professional job to please the client (bride and groom). There is no doubt in my mind, however, that to do such mobile gigs requires a far more extensive knowledge of music.

Back to topic if I walked off and let autoplay do it's thing my clients would be far from happy (they pay for my DJing skills along with the PA and lights) and I would never be recommended again.

As I don't advertise I rely on client satisfaction for future gigs of this type and am busy for most of the year. Having said that I don't enjoy them anywhere near as much as the club gigs so autoplay may be adopted very soon.