Autographed set collectors - questions about your experience

[swarmee]

Difficulties:
1) Players that die or are incarcerated. Even players from sets in the 2010s have died (Yordano Ventura, Oscar Taveras, etc)
2) Players that don't sign much.
3) Players that retire and move back to their home countries.
4) Determining whether autos are authentic.
5) What to do about checklists or team cards or multi-players? Do you need 1 sig or all sigs or best player?
6) Costs of auto acquisition and authentication.