And not for nothing, certain players who made the 53, as well as the PS-- Rousseau, Basham, Spencer Brown, Fromm, Doyle, Anderson, Stevenson, Wildgoose, Hamlin, etc developed in those three games. I'll disagree with @Ethan in Portland, and @GunnerBill here: There is no substitute for real game time experience, and the preseason games are the only opportunity for these guys to get it before the regular season starts.
And I'll add: I enjoy the hell out of them.