MikeJhn":1r8ii901 said:
... when you take into account the NVR switch, router, feather boards etc...
I think that's rather the point.
When you do take into account all the plasticky bits, and Rutlands' overheads and profit margin, the proportion devoted the the important part - router, bearings, etc. will be tiny. So you cannot expect them to be good quality.
My experience has always been "buy cheap: buy twice." The difference in making one's own table is that the outlay goes on the important things, namely a better quality router (bearings, collet accuracy, runout overall, decent speed control, etc.). Even if you eventually decide you don't like using it a better one has better secondhand value too. And making a table from a workmate-style portable bench means you have a bench when you're not using it as a router table.
I still, very occasionally, use my old one, made that way. OK, most of the table work I do is on a proper router table now (with a T11, which is brilliant), but there are still occasions, mostly when running small rebates or mouldings on long stock, when I can quickly set it up in the yard, instead of trying to arrange clearance around the table in a crowded workshop.
NVR switch? Tough call. I start from the principle of not doing dangerous things in the first place. It's not that different from having a simple switch in a box close to hand - it's what people did for decades in home workshops.
As long as you stick to rules, (i.e. you NEVER vary or do anything else), such as always removing the power before touching any router controls or the collet, never power-up with the stock near the cutter, and so on, you stay safe. In most accidents involving a table, the NVR switch would be little help as it would all be over too quickly. Personally, although I have one, I have it arranged so that I can unplug the router from it, too.
I unplug when changing cutters, for example, or setting the fence.
One of the _dangers_ of an NVR switch is the assumption it adds safety - it doesn't. For example, all the while mains is applied to it, it's just an ordinary switch. So, with the router unplugged, it can be on, and you can't tell by looking at it! At least with a conventional switch you can see at a glance which state it's in.
Routers are dangerous tools. Always.
I don't think an NVR switch actually does much to reduce the risk, but safe routines always do.