So if I understand your comment correctly, it's the R&D (making sure all parts work together correctly) that decides the majority of the price here, not one of the actual components?
From your continued asking of the "why" question, it makes me wonder if you've ever tried to build a DIY anything yourself. Developing something like this involves a lot of the designer's literal blood, sweat, and tears. There are all sorts of levels of DIY from using 2x4s to machine precision accuracy. I will say, that precision is what astro is all about though. A seemingly innocent +/-1 degree accuracy will be okay-ish for something like wide-angle DSLR type shots, but once you start using longer lenses, you will be wasting your time.
This person is trying to have a discussion, you're trying to have an argument.
> Developing something like this involves a lot of the designer's literal blood, sweat, and tears
I retain a lot of water so I can see the sweat part. But I think blood and tears are an OSHA concern.
If you've never shed a tear over something so close but ultimately not working, then you must be a robot or souless. It's human nature. You could just as easily add and/or swap tears for curses. Personally, I lean toward the cursing as it's more satisfying.
Also: argue: intransitive verb: To put forth reasons for or against; debate.
The fact that this word immediately sets forth a hostile emotion for you does not mean I am being hostile.
And if people regularly bleed and cry at my workplace then I think it's reasonable to call that a toxic environment.
Since definitions of terms and semantics are now a part of this Internet conversation, I think we're done here. You can reply once more and have the last word, if you like. :)
I wouldn't do this for random internet people for less.