I am a crowdfund investor and big fun of Ethereum. I sold already coins with a great profit so everything is cool terms of investment, but actually I don't care a lot about the profit, I supported the technology. I know Gavin Wood and I like him, he is a fantastic software engineer and talented scientist. The project is absolutely great Ethereum could be a game changer, of course the success is depending on many factors not least luck.
However, there are 60 millions coins, the miners add to this supply every day (why needed to enable the fucking useless mining I have no idea when the network can be secured in many other ways), and therefore I don't think the price can be at the $5 - $10 level - such price is not sustainable in my opinion. The platform is premature terms of business development and there is no demand for the coin.

That's all right that 100 miners in this forum trading the coins with each other for no reason but for trading, but real money from real world investors won't come into the platform until there is a real economics behind the coin (other than fucking day trading), so nothing will keep the price on the $5-$10 level.