There is much value.
And C.J. Mahaney, in his post HERE gives some of the best answers to that question. He also quotes John Piper, a quote that I recently also shared here on this blog in an earlier post.
One must always push themselves to read, understanding that the effort may only produce one new idea, one new insight into scripture, one new thought about leadership. But who is to say that that one “gem” is not going to be a catalyst for great impact and chance in one’s life and those around him?