"They even have a plan for 18 pieces a year."

I think that plan is for a particular type of hair system thats a 'disposable' concept.
It was for guys who didn't want the hassle of clean ups etc.
You wear it for a few weeks and then throw it away.

When you work out what you spend on tapes, glues, cleaning & maintenance products in a year,
maybe the disposable idea isn't so expensive.
It certainly must be convenient, which I suppose is what you're paying for.

Burt Reynolds apparently has a new wig every week!
Good for him! But why THAT wig I wonder?