Depends on whether you have feet that instantly fit one shell/footbed combo and what level of skiing you want to do.
When I’m doing family type pootling I could be in almost any ski boot, and often get to the end of the day without ever really clipping them up.
But, if I’m in powder or doing bumps/steeps, I need them clipped up, and am aware of the imperfections in my fit, and the way the liners have packed down. Mine current ones have done about 120 days now so time for a change soon. I live on the south coast, but I’ll be going to Colin in Bicester, or Lockwoods in Leamington Spa, on a weekday, next time. Last ones done by a very good fitter in Jackson Hole.