Translations for cheap in French

Here are paragraphs from public domain books translated:

“My dear,” said Marguerite, sitting down to the piano, “when I put on one side what he gives me and on the other what he says to me, it seems to me that he buys his visits very cheap.”	—Ma chère, dit Marguerite en s'asseyant à son piano quand je pèse d'un côté ce qu'il me donne et de l'autre ce qu'il me dit, je trouve que je lui passe ses visites bon marché.
The Lady with the Camellias, by Alexandre Dumas son	La Dame aux Camélias, de Alexandre Dumas fils