eytonxav
Give me a museum and I'll fill it. (Picasso) Give me a forum ...
One other comment. A key word in the OP is "spending". You can certainly "spend" a lot of time working on classic cars but you'll likely be "spending" a lot of money too "depending" on the car(s) and particularly on the levels of restorations/customizations. It's been a hobby for me but I'd estimate just in the last five years, I've spent a lot more in real dollars than I could get back today based on "current" estimated resale values. (difference is probably between 150 and 200k). That's not counting or putting a value on my time/labor.
Especially true if you buy a bad car to restore and don't know what you are looking at. Had a friend that thought he was getting a great deal on a 67 Mustang that supposedly had a new 351 Windsor engine. Turned out the chassis and pan were badly rusted out and the lower side panels were filled with bondo. Motor was only a rebuilt 351 and it had a racing auto transmission unbeknownst to him. He spent $4500 and would probably need to spend $20-30K to make it into a street car. Now he is trying to sell it as is, but I suspect it can only be sold as a parts car, and its doubtful he will get his investment back.