The reason to do same day

The reason to do same day editing it to be able to sell recordings to the people attending an event before they get home and forget about it.  Probably not weddings but music festivals or things like that.  I record that kind of events but generally take at least a day do do a 3 hour 2-3 camera shoot so I haven't tried this approach.  Interestingly there is a patent on doing this so if you try it with a big event you may get a letter from a lawyer.