As we pointed out in an earlier post:
A lege may have all the tickets to professional, semi-professional and collegiate sporting events, musical concerts and other entertainment venues as well as golfing, fishing or hunting outings that they can scrounge up - if a registered lobbyist is not paying.
If, however, you need tickets for a concert, say a Hannah Montana concert, no problem. Just don't get them from a registered lobbyist.
C B Forgotston tackles this in his latest post What about non-registered, illegal, lobbyists?
It is well worth the read.