I actually thought 1500 seemed a little high.
It was a great experience for kids. They had bounce houses, block R tattoos, tackling dummies, mini soccer goals, mini hurdles, cheerleaders, etc. My kids had a blast. It looked like all the players were having fun too. Just tossing balls around and hanging out with fans, once they were done with autographs.
The weather could have been a lot worse. There was a nice breeze, plus occasional showers, which kept the temps down. They wrapped it up a half hour early after the crowd thinned out and the rain became more steady.