i think its a incorrect to say that because nobody pays for music then nobody must value it. people may consume more music that they dont value these days because its free but good music will still have the same value to people who are open to it as it always has regardless of whether they take the time to express their appreciation to the music's creator. i've always thought that the enjoyment i get out of a good album is beyond monetary value so the fact that i can buy it for 15 or 20 quid is pretty good. but because of the climate its produced in (ie mass production of cds or records etc) the financial value of the music is restricted (in a completely meanignless and artificial way) to the market price of a cd or record. that says nothing about the value of the music to either the musician or the listener, its just a fairly random matter of fact. filesharing reduces the financial value of the music to almost nothing but it makes no difference to the value of the music at all. it means big changes to individuals involved in making music perhaps but if your talking about music surely thats a bit beside the point. it'll all work out lads, dont worry.
They don't value it as much. I don't know how many times I've read people on here complaining about the fact that people are talking through gigs all the time. That's one simple example of how people don't respect it as much anymore.
The fact that people are stealing music, small record shops are closing, big record shops are closing, labels of all sorts have closed and will close - means that people don't value it as much.
The fact that the 'album' is in danger of becoming irrelevent is a sign that people don't value it as much.
You talk about a 'market value' of music. Of course there has to be a financial value. If people are gonna spend time writing songs, rehearsing, recording and putting out records, never mind spending money of instruments, rehearsal rooms and studios - people on this thread are saying that their time is worth nothing. They should get paid €0.00 an hour.