I'm not a huge Tom Petty fan, but they rocked out and were very good.
I guess he is not a "Super Star" like the Stones, Prince or sensational like Britney or Nipple gate.
It was not a huge treat to see Tom Petty, if it were U2, The Stones, Pink Floyd, Zepplin or the Who, that would have been big news. Tom Petty is kind of eh on the star scale- still they played very well and I enjoyed the show.