It's been rumored that the attendance numbers are similar to last year even though the acreage of the festival has expanded (we heard 75,000ish per day). Supposedly they could increase capacity up to 95,000 per day but event organizers also said those numbers weren't going to be reached this year. We will see when all is said and done.
Regardless, Lolla can't get much bigger in our opinion. Butler field (which is on the North side of the festival) was absolutely packed. Which was the case last year as well. The problem is that more people are coming to the festival but the fields where the main stages are aren't getting any bigger.
Sunday is usually the biggest day of the weekend in regard to crowds, so we will see how it goes today.
Finally, just wanted to post a link from a Chicago Tribune story today that talks about an often overlooked subject at Lollapalooza, risk and insurance. Yes, when you think Lolla you don't think insurance, but regardless it's an interesting angle on the festival.