Ya, its a lot easy to spend $$$ on a decent WE system as you would think. The method is the same for their 4 models and the better models come with better and faster clamping system. I can justify what I spent on the system as between my family and myself we probably have 50-75 knives mostly kitchen knives and maybe 35 folders. I used to use a $200 chefs choice sharpener, before I knew any better. It really tears up the edge and wastes a lot of metal. Watch a youtube vid by a member here Josh from "Razor Edge Knives" to see what our system can turn out.
I've sharpened knives with whetstones for years, but the Wicked Edge system turns edge sharpening into an artform. Not the 15 second edge done on a grinding wheel that the knife companies turn out. My Pro Gen III unit is $899 and it doesnt take long to watch the dollars add up with extra diamond stones, diamond lapping films, variuos strops etc and accessories.