Yeah, not many 'stadium rock' acts left that can fill a barn that big anymore.
However, both G-n-R and U2 are extremely irrelevant at this point in time. Put these shows there in 1987, would have been packed.
My wife, huge G-n-R fan, was even like "meh, no thanks. they're just sad at this point".
And also, $30 parking now? Thanks Terry!