One of my (now in my late 50s) shattered dreams was to collect and repair vintage radios, use them, repair some of them, make some extra money and enjoy the hobby at the same time, rinse and repeat.
When I was young (early 80s) and I could have done this if I had put some effort, "vintage" meant: valve tubes, prestigious names (e.g. Telefunken), solid chassis, standard components that you could find at any hobbyist electronic shop (resistors, capacitor, valves, transformers, etc).
These radios still exist but command a huge premium, components are hard to find, they are basically used as a piece of furniture, etc.
All modern radio devices are built around a programmable microprocessor and don't lend themselves to repair. Once it's gone, it's gone.
So, what is considered "vintage" today and is it still worth collecting?