I have to agree with what you are saying, JB. Of course we have talked about this many times before.
I made a spine meter much like the one that Big Country has posted. Slight differences, but basically the same thing. It is good enough to learn about different arrows. You can measure spine around the shaft and differences between arrows in a dozen. I would say that nothing I've tested is in the league with ACCs, but Carbon Tech and Victory aren't bad. Some brands that I won't mention have been bad enough that I will not likely ever buy arrows from them again. I also have a simple arrow spinner that shows wobble, but doesn't really measure how much the arrow is out. Some times only one end wobbles and you can cut that out.
As far as how to best spend your archery money, I know that most of my cheap bows and Frankensteins have shot plenty well enough with good arrows. Heck, even a brand new Alphamax won't shoot the way you want it to with bad arrows. LOL