So.... engraving and walnut are worth it... but precision machining isn't....OK
Absolutely! Other opinions may differ, but mine is certainly at least as valid as yours and your attempt to belittle my opinion would be insulting if I cared.
Knowing just a little bit about machining, Brown's machines are not any better than anyone elses, and his tooling isn't any better. The cost you are paying is for the inefficiencies of building essentially one-off rifles and having a good "name" in the business, it really has little or nothing to do with the machining. Basically any manufacturer can machine to the same tolerances the custom guys do, they just don't want to spend the time and money to do it in a production mode because most people will not pay the extra 20% cost for it. So you have to have something more than close tolerance machining to have a bolt action rifle worth more than $2k or so in my book.
The gunsmith that assembled my custom Mauser used very good tooling and machines, the rifle looks and shoots great, and was worth every bit of the roughly $1100 I have in it. Of course I used a WWII era VZ-24 Mauser action, a cheap B&C stock (which has held up extremely well over the years), a cheap Douglas XX barrel (which shoots just about everything under 1"), and a KG gunkote finish (which wears like iron). However the quality of the finish and the action trueing he did is first class.
I could go on about the custom Mauser I had built in .458 Winchester, but you get the point. But as I said, I have no problem with people that do want to spend the money on one, they are fine rifles and you won't have any problems with them. But to me all these type guns (including mine) are just tools, it takes something more to make them special.