To answer your
original question Floydian (

), yes, I do believe higher accesability and exposure to a band's music will, and has, provided greater ticket sales to artists that are already fairly well-known as it is.
The problem with this is, most of these bands are already running sold out shows in practically every city they hit, so I highly doubt it's a concern. Unless you're keeping up with the independent music scene, you'll more than likely be missing out on a lot of up-and-coming artists that really
do need ticket sales.
This could be speculation or just mid-morning rambling. Take your pick.