I tried an inexpensive, imitation Windmill-style wind-proof lighter that I got at Wal-Mart for about $7. I think it was called a sport-utility lighter. The functional parts looked identical to a Windmill as far as I could tell. Consider this a warning:<br><br>Hopefully the real ones are much better, but the one I had consumed a full charge of fuel very quickly and I also found that the button got too-hot-to-hold very quickly. Also, the cap hinged open only about 90 degrees, so it was in the way for fire starting and I also found the blow-torch style invisible jet "flame" was not that good for lighting things on fire. For instance, I couldn't easily light a candle with it. The jet would char and burn the wick, but the force of it would sort of blow-out the flame or something. <br><br>I was dismayed at how lousy it was. I would rather have one disposable lighter than 100 of those imitations in a survival situation. Again, the real ones are probably much better, but if even some of these disadvantages are present in the real ones, I'm not interested. <br><br>I decided not to experiment with a more expensive version and just stick with disposables. With a disposable I get 3000 lights in the most compact package for a buck or two. That's good enough for me. OK, so it's not windproof, but it is way ahead of a bow-drill.<br><br>Just some things to watch out for when you do your hands-on testing. Good luck.