Ether is too big to fail because its premise hold endless opportunities and benifits. Understand the business and you will understand the product! Understand the product and you too will invest with knowledge, not forum gossip.
Nothing is too big to fail. Observe the past American housing market, or banking industry. I'm pretty sure those guys percieved themselves as 'too big to fail', right up to the Congressional hearing. And we are talking about serious market capitalizations.
As long as the Ethereum is supported by the community including the miners, and it is developed successfully, it will not fail.
At least for now, it has support of the community and the miners, the price did not drop to $5 as predicted.