Drum solos in and of themselves can be good, pertinent music, when that happens it is a plus. But I chose yes in the survey because I like the role they play during a well-paced rock concert. First it gives the ears a few minutes to reset themselves, the mid-range roar of electric guitars can be (and often is taxing.) So long as it is not a cymbal crash fest, I view solos as a break from sonic assault. Next, it makes whatever follows it, very exciting. This is a gimmick for sure, but when the band comes back and hits a loud chord - well that's almost as exciting as the first song of the night. Singer gets a break. Lighting and production crew get a few moments to prepare for the big effect of the band returning. Finally, this is a topic for another thread, but most of us ask for nothing but songs from our artists. It is refreshing to hear something in a different structure. A well composed instrumental can be a rondo, or better yet in sonata form and other forms too. For me, at least, it is a treat to get past song form every once in a while.