I have three Shorais. I have Shorais because I don't want to get stranded on the street, or worse yet, out in the middle of no where on my WR 250R. I've told the story here several times about dunking a KLX 250 in a stream in the middle of no where on Florida. The only thing that kept that in convince from becoming a disaster is a small vice grips (to get the carb drain screw loose, to drain the water out of the carb) and a Shorai battery that had to do way more cranking than any lead acid battery could have ever done.
My Super Duke had been a stubborn starter. I've run a bunch of fuel injector cleaner thru the bike and it starts pretty easily now. But before I got that little problem squared away, that poor Shorai had to do a bunch of cranking. I would have hated to have had a lead acid battery then.
Shorai's customer service is #1. Email them with a question or two, and they'll give you a coupon code for a discount on a new battery. Heck, they even gave me a t shirt!
You can have your lead acid batteries, wooden wheels, and kerosine lanterns.