I think there is a decent sized group of MLB fans who are not necessarily hard core team fanatics that live and die with every win and loss, but people who are just looking for a nice summer night out at the ballpark with family or friends, enjoying the food, drinks, atmosphere, and things like fireworks night or bobblehead night. Winning is just a bonus.
But yeah, late in the season, you could get great tickets from the scalpers for as little as $10 each and so-so tickets for $5. Parking in the U.S. Steel tower was $7 after 5 pm and you could take the "T" for free right across the street from PNC Park. Throw in a $1 hot dog night and game giveaways and you had a great evening.