They are in the process of getting BTC on the stock market, google Bitcoin in the news section. That will give it a boost. You can make a really long statement why you think its dead but you have to look at all resources first, if BTC gets on Nasdaq, that was a lot of writing for nothing.
And it's getting on nasdaq because ... a couple of wales can't cash out of bitcoin any other way without losing $$$ to the IRS & crashing MtGox in the process. Nice argument

How would they lose anything to the IRS buy selling to mtgox or coinbase, or any other outlets? They just bought some $20 million in BTC, 1% of all BTC's, why would they want to sell right away?
I didnt know my statement was an argument..... lol
Why would they want to offer it as ETF if it was a killer investment? Hint: They invested a while ago, now they wants ta git out. But gracefully.
IRS you ask? If they made money, they owe, they owe.
Edit: Bloomberg article you'll enjoy:
http://www.bloomberg.com/news/2013-07-02/winklevoss-twins-make-best-case-against-bitcoin-fund.htmlExcerpt:
"But the Winklevoss ETF's own filing makes the best arguments against treating Bitcoin as an investment asset.
1. "It may be illegal now, or in the future, to acquire, own, hold, sell or use Bitcoins in one or more countries, and ownership of, holding or trading in Shares may also be considered illegal and subject to sanction."