The battery swap isn't something you can just quantify easily by cost alone...it's more of my passion of being a weight weenie and a tech junkie that makes it worthwhile personally.
For the record, I do manage to jump on their seasonal discounts so the price isn't quite as high as you think from their website, but let's not kid ourselves to believe that it's affordable...because it's not.
However, I still had my stock OEM battery after 13 years of faithful service, whereas I know others who may have gone through 2-3 batteries in that same period of time. So I suppose that could be considered.
