I agree with you about the prices, and even now the price is not all that awful for the new technology. But the big difference between something like AGM and these Shorai batteries is the even when brand new, AGM was known chemistry (lead- acid) while the Shorai type is new to vehicle starting use as far as I know.
I find it amusing that Shorai lists a far longer battery life as an advantage to their technology and then gives a 2 year warranty, the same as a MotoBatt AGM battery. I would be a lot more impressed if Shorai gave a 5 year or even better, 7 year warranty even if it was pro- rated.
As I said before, I am not opposed to these new batteries, I just want to see them prove their suitability to the task before jumping on the bandwagon.
Brian
<snip>
BTW, AGM batteries used to be very expensive when they first came on the market -- give the Li-Fe batteries time for the prices to come down before you buy....