Smugmug Sales Question

Do you guys with pro SmugMug accounts sell any single pics to random customers? Or does everyone just use it to sell to clients from their paid shoots?
I've been thinking of getting a SmugMug for hosting and letting family and friends order prints at cost. But wonder if it's worth a pro account to have other prints available for anyone to buy?
Do you guys make many sales like this on SmugMug?

No random person has ever purchased from me. I still think pro is 100% worth it.

With It's usually not a random person. They normally have to have some relation to the subject, be it they were at the event, family, friend, whatever.

But that could be too I specialize in weddings/portraits. If you specialized in architect/landscape/ar​t, I could see a random person making a purchase, but I'm not sure how often it happens.

With the exception of our horse shows, all of our galleries are password protected. No random people. Maybe leaving a "Fine Art" gallery unlocked could bring along a stranger.