Why Don’t All Bands Do This?

I love music, and also believe that the music industry is doing a terrible job of making money, especially on the web. One of my favorite bands is the Counting Crows and over the weekend they launch a new site, Live Counting Crows. The sole purpose of this site is to let fans purchase live concerts. In fact every live concert from their tour this summer will be available. 

I believe that they are using a company that has been doing this same service with smaller bands, but the are one of the first "big" bands I am seen to use it. At $10 a show for an MP3 Download it stands to be a pile of extra cash for work that they are already getting paid to perform. It seems like a no brainier to me, that all bands should be doing this. What do you think?