Polishing is generally that kind of thing you want an underclass of ill paid workers to do. Hey I know, I've been polishing edges for 28 years, and I do sometimes wonder why I took up something that is normally given to first year apprentices to do. Takes a certain temperment, and I can only do so much, then I have to stop doing it for a while. On this last point, I think Dazza may have said something similar about lugs.
I think that if a person doesn't do that kind of work, they really don't appreciate it, so I don't think I would do it for sale.