First of all, I am not impressed with any of the user bashing going on. If I want to see a bunch of idiotic trolling I'll just go to YouTube, thanks. You know what they say about "arguing on the internet" ...
I personally have purchased music and movies off of the iTS. They play in iTunes on my Power Mac G4, my MacBook Pro and my iPod 5G just fine. I am a semipro musician (played French horn for nine years,) and have a better ear for intonation and small pitch issues than most, having played/mixed in an orchestra/studio setting for a long while. I can't for the life of me hear any difference between a 128kbps AAC or a 160kbps AAC encoded straight from Logic on a pair of studio phones. Nor do I really care about FairPlay. iTunes store music is inexpensive and it sounds fine to me. I listen to music because it is enjoyable, not because I want to point out all of the technical flaws in its encoding. If it needs to be distributed, burning it to a disc and ripping it back in works. Most people are like this. They don't care.
Now, to the topic:
If the store disappeared, and suddenly I found myself redirected to Amazon or something, I wouldn't mind. It would still play on my computers and iPod and it would still be inexpensive.
Apple would mainly only close the store to make a statement: "If you guys really want the price hike, well, we're not making much off of our store anyway. If we get rid of it, it's one less thing for us to maintain. So let's see if you can find another major store that will give you what you want." Alternatively I could see Apple possibly kicking a few artists off of the store until they wise up a bit, like what happened to NBC.
And I'd be interested to know if there was any major store that would accommodate them. If they did, those specific artists would probably notice that compared to everyone else, they'd not be making as much money. 'cause, you know, there are other stores out there that might be affected by this. (This is MacRumors after all so I understand the focus on Apple, but still.)
Now if you're a musician or songwriter and you are making any money at all off of your music, consider yourself lucky! I've not made a penny despite several attempts at putting my music "out there" on various places. It's a tough business, and you have to adapt to the changing circumstances just as if you were working in any other field. Demanding a ... what was it? 63% increase? ... in royalties is not adapting and rips off consumers (collectively) and distributors. If you are suddenly making less and can't live off of it (if you can, consider yourself really, really lucky,) find something else like a part-time job to supplement it. Life's not always fair. Deal with it. (Of course, none of these people are going to heed this advice, let alone probably even read this obscure, random person's rant on a forum dedicated to Apple rumors.)
If the price hike did actually come into effect, then ... oh well. I'd find wherever offers legal music the cheapest and get that. If Apple can't offer that, then they'll lose sales and likely close the store after a while anyway, so it doesn't matter.
I would guess the App Store would probably remain open if the iTS closed. No reason to close that as it has nothing to do with the price hike.
Oh, and, for the record, I live in Ohio, and I am not a hillbilly.