I can understand asking the question, but there are people who haunt those threads who seem to have a chip on their shoulders and make it their special "cause" to debunk Sebenzas and characterize those who own them as deluded and/or snobs. In most cases, the naysayers have never held let alone used a Sebenza. And it goes on an on.
A common argument in those threads is that a Sebenza is not the "best value," as if knifenuts are practical people. I suspect at least some of those who argue along those lines have 25 or more knives that cost $120+--"practical" is out the window for them too whether they recognize it or not.
Another theme is that Sebenzas are all safe queens that nobody uses. The link and photos above debunk that.
Anyway, my stock answer in the "is it worth it" threads used to be along the lines of, if you really want to know, buy a used one from a reputable member, and if you decide you don't like it, you'll get every penny back--a no-risk venture. In other words, people who ask the question should decide for themselves.
But now I just ignore the threads.