I don't think the miners will ever sell for a loss you are crazy. Most miners are barley breaking even at $8...
Not everyone is a miner, and everyone including miners will sell if they think they're not going to be able to get anything for them later.
And you are obviously a self-promoting miner who is trying to manipulate public opinion to suit his own interests, just like many others in this thread are trying to manipulate public opinion to suit their own interests (especially that Edward50 or whatever guy whos EVERY post is about bitcoins falling !)...
And if you want to help miners, you can just quit the business ! The less miners there are, the lower the difficulty and the more they earn. So if you're such a self-sacrificing miner-crusader, go jump off a cliff for the good of other miners !
I've stopped mining at $15. At that price and difficulty I can only make $3 after electricity costs. That's with almost 1 GH/s, too.
Electricity costs now don't matter if you believe bitcoins will be a lot more valuable in the future.
Now what would happen if we all just held the fort down, and instead of exchanging our Bitcoins for dollars or euros , we spend them within our growing community https://en.bitcoin.it/wiki/Trade
Selling BTC for dollars or buying goods with them is the same thing when it comes to the effect on the bitcoin price, because all traders immediately sell the BTC they get. So you'll crash the price in one way instead of another.