I'm looking to buy a Victorinox Alliance. I can get it for $450 with a total 6 year warranty and lifetime battery replacement. Or, $300 with the standard 3 year warranty only. My understanding was that changing out the battery on a watch like that is around $25 from authorized dealers. With that, in 15 years, the $150 difference would pay for itself if the batteries last 3 years @ $25. I'm in California, btw. How much do your Victorinox battery replacements cost if you take them in? Which deal should I go with? thanks in advance.