I've spent a lot of years around minor-league players, especially low-end minor leaguers, the guys who aren't going to and/or didn't realize the big payoff.
It is a dream. Maybe a pipe dream, but a dream nonetheless. A gamble. A longshot. Many of them knew it when they signed and most of the others figure it out soon enough.
The mind game is numbing for them. They are admired, even worshipped, yet the kid flipping burgers at Mickey D's is doing better in the wallet than they are.
That said, having played in the old men's league with a lot of guys who played in the minors, the overwhelming majority would do it again in a heartbeat.
What does that tell you?