Does it annoy you when companies don't show the internals of electronics ?

As a reviewer, some thoughts:
If you wish to protect your country’s small business interests, perhaps you might wish to reconsider promoting exposure of potential proprietary info that could be copied and eventually weaken the manufacturer’s sales.

I have found only a weak correlation between interior appearance and sound quality in comparison to other similar products. I have not found nice looking interior and parts to guarantee superior sound, nor necessarily better reliability. It would be nice if it were so, but I have not seen it appear as a rule for component selection - at least if the goal is building a superior sounding rig. :)

I am not interested in debating my observations. 

Not do debate you, grannyring, but I was not saying that parts upgrades are not efficaicous; I concur with that. I'm saying that by looking at a component, the sound quality in relation to any other given component cannot be determined. If you disagree, great. So, we differ.  :)