So, I kinda agree, but disagree. We need a test server for bugs, not builds. It seems we have a lot of bugs, and I think I'm currently experiencing one, but I'm not quite checking thoroughly. One big issue with this, is, it may kill the market and create a meta market. If everyone tests what is best, they will hike the prices simply because it will be the most in demand thing. This type of thing needs to naturally happen over time. Part of the journey here, is figuring out what is best, or what fits most. It creates a circulation of wealth, as people attempt builds and fail, or rather, prefer another route.
It can also become very boring if you just figure out what you need. You might just give up on it, because anticipating the result is part of the reason we grind mindlessly. It is what makes grinding somewhat bearable.