@JoJo Bananas: I completely disagree, at least in terms of Day-of. Or rather it depends on what situation
I had all independent vendors including rentals, bar, caterer, flowers etc. We had to determine that day if it was Plan A or B depending on weather and I did not want to ensure all the vendors followed their detailed plans we had given them.
Nor did I want to have to be responsible for the payment to them that day, or for the “back up plan” for the potentially belligerent drunk brother we expected.
I also did not want to have to keep an eye out for when the groom arrived while I was doing portraits to ruin the first look.
Or to gather the bridal party for the different events such as the actual ceremony, introductions, to pay attention to time for the first dance or cake cutting. I loved having someone tell me what to do and knowing I wouldnt miss anything or stress out or stress out my mother or Mother-In-Law
I did not want to deal with as it turns out that gramma wanted to sit on the dance floor and have to worry about finding her an arm chair (we already found one for her table)
Or to take down all the decorations/left over packaged foor and load it into our van back to the hotel etc.
Sure it could have been done by others and myself, but I really enjoyed paying someone to worry about it and it was a minimal cost.
Granted, no its not needed, but I would not have had the time to do the decorating or organizing my self day of, and we couldnt do it day before so I would have to trust 5 plus vendors to coordinate, etc. I wouldnt trust 5 independent employees without a manager, so why them? I wanted to enjoy the day, not stress
Compared to other expenses, it was cheap for $300. I bought and sold many decorations and tableclothes and came out even on those, so for me it was really worth it to spend the money on a day of.
EDIT: many people have essentially a Day-of, just not paid. They have designated someone. Its a matter of trusting/wanting to ask a favor of someone vs paying an experienced person.