This rapid price overheating on everything including cars and real estate can't and won't last forever. It will go down eventually and likely hurt a large number of people in the process ala 2008.
Observation is the group propping up old car hobby here where I'm at are largely boomers. Not very many below say 55 or so are interested in this stuff so at some point the demand will hit a wall and things will change.
Look back 50 or so years at the the model T, Model A, and restored V8 ford prices. As the generations that grew up around them passed asway so did the prices. History repeats itself. Throw in the greenies, the EV push and Restomods with the newer drivelines. Remember when the 70-80's Street rod market overtook the 100 point restored cars price wise?
I want a car like grandpa had but I want tilt, heat, air, PS,PB, PW, CC and the ability to cruise at 70 MPH all day longIt's just a matter of time IMO.