I make one version of the myriad of carbide tools the Woodchuck line, and I still use my Thompson bowl gouge and Sorby skew, in fact I've been looking for a decent inside bowl scraper. One comment made by the Secretary of the North Florida Woodturners when doing a review on my tool was 100% dead on, its not a good tool for beginning turners, in that they need to know how to sharpen their tools.
I was a machine tool instructor and the first thing we taught after basic safety was how to sharpen a HSS lathe bit and drill bits the same thing holds true for woodturning, interchangeable carbide inserts are great, they are faster and a bit more convenient, but I hope they never replace good quality HSS or Powdered Metal tools. I still believe that "it's a poor craftsman that lays blame for his shoddy work upon his tools"
Ken Ferrell