I've got the radio shack micro. I can truly say it is about the best $10 I've spent on anything shaving related, except maybe Colleen's Black Cavendish soap. The optics are good enough where you won't even say, 'they're good for the money'. They're simply good. You can carry a 100x mag with you in your pocket anywhere you go, and it's got a nice light to boot. So, if you're in the bowels of some antique barn crawling through spiders webs, you can still check out the edge you're interested in. - John