If it is a fundraiser for a legitimate 501(c)3, I wonder what portion of the admission is considered to be a donation by the IRS?
Back in 2001, I gave $500 to attend the only videotaping of Marian McPartland's Piano Jazz at SCETV studios in Columbia, South Carolina, with guest Dave Brubeck. At that donation level, we received admission to the taping, which could have been done far better, as there were two retakes due to technical problems, not mistakes by the pianists. We also received a videotape of the program as aired, a limited edition of 50 or 60, though it can be found on youtube.
It was a rather large sum at the time, but given how many comp review copies and comp concert admissions that I had gotten over the years of both artists, I felt the need to do it.