I dunno. When people are ready they buy. There's folks that have thought about having a rod or other vintage incarnation of vehicle in running condition or not, and when they buy it is almost an impulse regardless of all else. I myself have done that.

Hobby cars are like anything else in the "toy" category. If you get the urge for a jet ski you'll have one in the garage before you know it.

The "blind to all reason" is what auto sales people have benefitted from when folks have stumbled in with stars in their eyes for some vehicle they just gotta have. They've sold themselves and are vulnerable as all get out. Like that with any big ticket adult toy.