doc-z ... $500 a night at a piano bar in Norway ??? ... you better stay there !!! ... In fact, Steve and I will join you ... Unless one has a great resume and following, I don't see that kind of money being paid ...
In local area clubs, piano bars will pay about $150 a night and the high end clubs probably more, but I don't know how much more ... Obviously, 'name' players get whatever their popularity will demand ...

You might want to do a 'Google' search on piano bar jobs in the Boston area, or search for an agent ... the problem I find with agents is 1) their commision, and 2)if they get paid by the 'establishment' and then pay you, they are tardy in paying ...

If you do land a gig in the area let us know ...
t.