Having to fight for the right to service equipment is absurd. I have been considering buying a high end DMM. The cost means nothing to me, but I look at the sophistication of these closed devices (running an operating system, GUI interface, internal programming languages etc) and it makes me think twice.
The older generation of equipment (for example HP) was supported with service manuals containing calibration procedures, description of operation, circuit diagrams, and board overlays. Even for that legacy equipment there is only a limited ability to support the hardware (replace all the caps!) because the software was closed. It would be a herculean effort to reverse engineer the software, let alone the hardware with precision components that were purpose manufactured for the device.
I understand the reasoning for having the intellectual property for a device entirely closed. But I question whether it actually works. There are examples of equipment being copied so well that it is indistinguishable from the original (GPIB interfaces for example). There is high end equipment that doesn't bother to steal the hardware, it just copies the look and feel of the user interface. Furthermore, nations engage in espionage to steal design information.
The one ray of hope I see in all of this might be open source. I'd like to think that there is enough money to be made in cheaply manufactured hardware, that the software can be opened. I suspect that this might make sense only at the top (nation) or bottom (hobbyist) manufacturing levels. Still thinking that one over. I just read a thread comparing oscilloscopes where it was said that one manufacturers offering had the advantage of being easily hackable. Why make us hack? If the software was open, the support costs could be lower because the user community would take on the support. And I'd still pay for a better quality implementation of the hardware.
At the hobbyist level, on the other hand, I have been toying with another idea. I release a hardware design with full disclosure of circuit diagrams, board layouts, components and whatever else I have time to document. I write my own code, describe how it functions, and demonstrate that the hardware works to specification. But I don't provide software. What happens then? The hardware might be cloned cheaply, and maybe better than my implementation, and I could buy it. Some enterprising souls provide their interpretations of the code, and competition ensues to provide the best performance from the platform. It might lead to open source software, and an open hardware implementation? (That hundred page LCR meter thread comes to mind).
Closed hardware and software doesn't impress me, and in the end I personally question every decision to buy something complicated. Often, it comes down to whether I will buy it at all. (The best things I have are the ones that I don't have at all

).
(edit :- grammar)