One piece of advice for a vintage collector starting out

[The Detroit Collector]

I guess my question would be is he getting into vintage to invest for the future or because he likes the vintage world and wants to have a beautiful collection of history.

1) if its to invest, collect the big stars. Ruth, Mantle, Jackie, Cobb, Wagner. There prices will always rise and cards will always be in heavy demand.
2) If its to collect, collect what you love. Players, teams, certain card types.
3) don't try and collect everything. I still kind of have this problem. Focus on one area whether it be a player run, a set etc. and work on that. You will never come close to completing a project if you keep jumping around.
4) Understand that vintage grading is very different then modern grading. A 1940 7 is completely different than a 2023 7.
5) Ask questions and do your research. Don't be afraid to talk with vintage dealers and ask questions. Most of them just love talking about vintage baseball, or a player, or a rare set.
6) Dont expect to do a quick flip and make a ton of money. Vintage cards are like the Dow Jones. You wont see any difference in the short run. But in the long run, it continues to gradually increase.