Dear Jenny,
Ultimately, to an atheist cynic, nothing matters. We are born; we live; we die.
We may or may not try to live decent lives. That matters to some people, but not others. Now we're talking about what most of us would regard as 'decent' people.
A few of us may try to create art, in one way or another. What is art? Let's choose 'a communication of emotion'. After all, how much to I care about something you saw? I don't really care what it looks like, unless it's something really unusual that I've never seen before. I do however care what it FELT like. That's a part of sharing being human.
At that point, technical quality is unlikely to matter much -- until it does. If I notice technical shortcomings (colour balance, sharpness, whatever) before I notice the emotional impact of the picture, then the picture has failed to a greater or lesser degree.
Finally, a slightly contrarian view. Mostly, I'd agree wholeheartedly about 'real' pics in galleries versus repro. But I was familiar with reproduction prints from many 'great' photographers before I ever saw their work in galleries, and more than once, I have been disappointed by original prints. Ansel Adams often grotesquely over-enlarged his prints, and the only original prints I've seen from Aleksandr Rodchenko, Frantisek Drtikol and Karsh of Ottawa were frankly disappointing.
Hope this goes some way towards answering your question. I once asked a somewhat similar question on Rangefinder Forum, at
http://www.rangefinderforum.com/forums/showthread.php?t=110212 There have been nearly 9,000 views and 166 replies. It begins:
"How important is image quality?
A lot of the time, I suggest, the answer is "Not very". Only very, very rarely do I need the kind of quality I can get from (say) my 75 Summicron on my M9.
To me, it's a lot more important that my Leicas are (relatively) small and light and (for me) extremely easy and pleasant to use. Conversely, I get no pleasure at all from trying to use a camera the size of a cigarette packet with a screen on the back.
It comes back yet again to the 'quality threshold'. Once a camera delivers results that are 'good enough', then they're, well, good enough. My old Pentax SV with its 50/1.4 is 'good enough'. After that, for me, it's usually down to how happy I am using the camera: to how easily I can use it to get the pictures I want. If I want the ultimate in quality, after all, I can always switch to a bigger format. All the stuff about 'Leica glass' is usually irrelevant.
Who else feels the same way?"
Cheers,
R.