"Reasonable price" is the important term. Pro gear is always outrageously expensive. If pros need the feature, they'll pay for it, whether it's expensive or cheap for the manufacturers to implement it. What bugs me so much is the practice of crippling consumer gear that's fully capable of doing more, so that they can charge to "unlock" the pro features at a much higher cost. I understand why they do it, and it's not illegal. That doesn't make it any less frustrating.
But things are getting better. I learned recently that one of our local stations acquired new HD studio cameras that cost less than $8,000 each. If pro studio cameras had been available just a few short years ago at a price like that, my school wouldn't have had to settle for an SD upgrade to its TV studio.
The great thing is that we have people like you, Frank, who like to invent. I hope you're able to come up with a solution for the problem. It has the potential to save someone like me a lot of time and irritation having to make such adjustments manually. You might not make a ton of money with the invention, unless you sell it to a pro company and sit back while they deal with manufacturing and customer support issues that I doubt you'd want any part of.
And that's part of the understandable reason that pro gear can cost so much more. There's not a huge market for something like this outside the pro community. You don't often hear someone say, "Honey, while you're at Target today, would you pick up some milk, AAA batteries and a push button, automatic camera leveler. And make sure it'll support my 10 pound 3D rig. Love ya."
However, my friend and I are both very excited about this project.
He is already ordering one of these.
I will be building a heavy duty unit that will support my 3 foot long bench with up to six cameras on it.
I haven't located the servos I'm going to need as of yet but should be able to find some soon.
Hopefully I can do much of the work on my living room couch.
I can do computer aided design from my couch but it's getting more and more difficult because of my eyesight.
Hopefully I'll be able to do it from my theater chair soon if some company will produce a 3D projector that meets my minimum standards.
(checkerboard 3D mode support, in case you were wondering)