I have a very nice entertainment center that consists of a large center holding the tv and two bookshelfs on either side. It would be more asthetically pleasing to put the left and right speakers on the bookshelf. But is this a bad idea? Or is it better to just stick with stands? I would try both ways except I would have to drill a hole in the back to allow speaker wire in, which I don't want to do if you guys think its a bad idea.