That's the politest thing about the MDF/skate bearing router that I have ever seen on this forum - and I've built and currently use one! It's funny that there's hardly anyone that would consider building, say, a milling machine or lathe that could come close to the cost/performance of a commercial item, but CNC routers are an exception to this, at least in the kinds of sizes that suit a home workshop. Always interesting to hear from a "professional" as there's always lots to learn.