boutique vs salesroom

boutique

noun
  • A small shop located within a larger one. 

  • A film production company making only a few movies per year. 

  • Any company specializing in bespoke or custom-made products or services for clientele in a niche market. 

  • A small shop, especially one that sells fashionable clothes, jewelry and the like. 

salesroom

noun
  • The room where sales are made 

How often have the words boutique and salesroom occurred in a corpus of books? (source: Google Ngram Viewer )