It's not that everyone loves them, just thats were the money will be in the not too distant future.
When we are forced to drive Green cars, I think people will wish KERS had been developed to its optimum.
Under current rules they can't perfect kers. IMO. f1 needs a massive rule change to include any type of fuel source. If companies want to devlop an electric car that is faster, let them.
Just have limits say on fuel weight. Be it liquid,gas,electric or whatever.