I'll usually go to box offices around here for stuff to save on fees, but since my shows are almost never above $30 or $35, not too much shopping around. In the jam scene though people are very likely to unload for cheap or even give away or "miracle" a ticket.

For the recent Bill Strings show that sold out months ago, where tickets were $65, i got one miracled about 2 hours before show on CashorTrade and another for half off as we were walking in from our parking spot.