fancier vs power user

fancier

noun
  • A person who breeds or grows a particular animal or plant for points of excellence. 

  • One who fancies; a person with a special interest, attraction or liking for something. 

  • One who fancies or imagines. 

power user

noun
  • A person who makes heavy use of computers, running many applications and capable of using advanced functionality. 

  • A computer user who seeks and uses products having the most features and the fastest performance. 

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