Just a theory but I will add to the above that although the Cali price over time has always plotted an ever rising graph, this could see a blip in the years to come.
We have all seen the occasional Calis for sale; '...barely used, bed never slept in, cooker never cooked on...' In the past 'Covid-year' and in the year to come the huge increase in new Cali orders will perhaps contain many more of these less considered purchases with dare I say buyers with more money than sense making an impulse purchase and for whom the dream of Cali-life is not what they imagined.
This is not just true of campers but anyone involved in any leisure business particularly outdoors will have seen a crazy rise in sales with people desperate to spend 'free' money on bicycles, SUPs, small boats, hot tubs etc, etc.
And if Cali order books are really 3x fuller then one day perhaps a glut of these barely used campers will saturate the used market and prices will only go one way...?