I look at players as an investment. They may be a good addition to the team, but I also want to sell for more than I got.
I wasn't saying that star players are useless, but that a PA+ will pop faster and be worth more later. A PA will probably be too expensive for a D5 or D4 team if trained right after a few seasons, so the idea is to train and sell, make money. Or train and have him as the main player with a high salary. I guess I just hate when a player doesnt pop at the end of the week lol