Listen for free you YouTube. Check a CD out of the library.
There are a number of clips on You Tube of a London concert from the 1970s in which he and the band sound great, with the added bonus that he is not preaching (or if he is, you can fast forward). A free concert from his heyday beats paying $5,000.00.
Even if you want to financially support the singer you can buy every CD they ever made for less than a mid-range concert ticket. And all that without some drunk next to you at the show.