expensiveness

noun

1. (uncountable, usually)The state of being expensive; the entailing of great expense.

   “1922, Emily Post, Etiquette in Society, in Business, in Politics, and at Home, Chapter 14: Formal Dinners, http://www.gutenberg.org/files/14314/14314-h/14314-h.htm Enchanting dining-rooms and tables have been achieved with an outlay amounting to comparatively nothing. ¶ There is a dining-room in a certain small New York house that is quite as inviting as it is lacking in expensiveness.”

   “Apart from the expensiveness of everything, there were recurrent shortages of this and that, which, of course, always hit the poor rather than the rich.”