The Tormek Blade Sharpening System
But most of us have also made purchases we're less proud of, like the $100 "miracle corner clamping system" I bought at a tool show which turned out to be utterly useless for anything besides building the tiny box the salesman demonstrated at the show. Naturally, we don't talk much about those overpriced white elephants, which is probably why these hucksters are still in business.

Indeed, there's not much to this tool. It's basically just a slow-turning motor with a couple of wheels, a plastic bath tub and a steel frame. But it does an excellent job. Over the past four years I've taken for granted how much it's meant to always have sharp blades, chisels and knives in the shop.
Sure, experienced old timers can accomplish this manually with a sharening stone but it's a skill I don't have nor am I particularly eager to learn it with my expensive blades. There's more to it than just rubbing a blade against a block, like maintaining the precise bevel. Get this wrong on a 12" planer blade and you might as well toss the set and buy new ones.
That's how I balance -- or possibly rationalize -- the cost of the Tormek. I was spending a hundred bucks a year on new planer and jointer blades before the Tormek but I haven't bought a single set since. As an added bonus, I have scary sharp chisels, scissors and kitchen knives too.
In fact, if you've never had a knife professionally sharpened before you don't know how sharp they can be. Perhaps for liability reasons, brand new, store bought knives are usually pretty dull by comparison.