My nanoSTRIKER is a perfect fit for my intended use; EDC/PSK and as back-up for other fire starters in my larger kits. It is also has the capacity to handle frequent use in a worst case scenario (i.e.: Long-term survival with nothing but my EDC). It is pricey but some things are worth the investment. In my opinion, the nanoSTRIKER is definitely one of those things.

On the topic of corrosion;
I have a Gerber Strike Force purchased back in '88 or so. I've used it a couple dozen times at most but it's spent decades bouncing around in various packs/car kits and storage units. There is severe corrosion and pitting along one side, although with its 1/2 inch diameter I'm not too worried about it failing. I really like the idea of shrink tubing to protect the ferro rods and I'll be putting that to use on all of mine.