I won't go into the new steel vs. old steel issue except to say that I was warned years ago by others that Bucks were too hard to sharpen and that was one reason I never bought one back then.
That is the truth. Knife traders used to tell me Buck had good steel but it took forever to get an edge on it but when you did get one it was no problem keeping it sharp. I traded a razor sharp Queen Steel for my first Buck in the early 70's and I thought I would never get that sucker sharp. When I finally got an edge on it several tried to trade me out of it.