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

I noticed that merrill audio and mcintosh general don't show all the internals of their electronics. A friend of mine actually asked merrill to see pics of the internals of their amps and pres. The remark from merrill... 'people listen to how they sound they don't look at whats inside.'

But why hide it? Are they trying to protect some secrets of their tech? Might as well just show it... if you have dones something truly exceptional people will appreciate that and its going to be that easy to rip off.