I have several, not all of them Big Bad Blades, couple of smaller ones. Always thought the name went well on the big ones for street fighting??? That aside, I have found most take a lot more work to get right, but stay right a loooong time. But I gotta agree with Mainaman, most Sheffields seem to do that, IMHO. Maybe price has something to do with collector markets and price guide publishers, sorta like old woodworker's tools?