Every once in a while I'll drop some hard earned cash on a concert and it pays off. The $50 spent on the original Black Sabbath 7 years agowill probably remain the best $50 ever spent. Geezer Butler was on fire, Tony Iommi was crisp and even Ozzy was animated as ever. The White Stripes show this weekend was by far the best show I've seen in years and I never expected it. I'd seen them years ago in a small venue and was midly impressed. Any two people with that much sound deserve to be appreciated, but I left…