good thing vs luxury

good thing

phrase
  • It is lucky (that) 

luxury

adj
  • very expensive 

  • not essential but desirable and enjoyable and indulgent. 

  • Pertaining to the top-end market segment for mass production mass market vehicles, above the premium market segment. 

noun
  • Very wealthy and comfortable surroundings. 

  • Something desirable but expensive. 

  • Something that is pleasant but not necessary in life. 

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