Do we need to have 280 brands of breakfast cereal? No, probably not. But we have them for a reason - because some people like them. It's the same with baseball statistics.
“I made more money yesterday than I ever thought I'd make in an entire lifetime. But it's like somebody's going to take it all away from me and I'll be back in Texas, installing them damned irrigation wells. I didn't like that when I was sixteen. And I know I wouldn't like it when I'm eighty.”