Definition of "expensively"

Customers are usually enticed in with a "ducat", or pass for one free dance; after that it costs them ten cents a time. I can work out expensively, particularly with the heightened tempo of war.

1946, George Johnston, Skyscrapers in the Mist, page 88

The room was expensively furnished.

1965, James Holledge, What Makes a Call Girl?, London: Horwitz Publications, page 77