I'm tired of all this talk about 'investments'. Bitcoin's value is supposed to come from people using it with some type of decentralized currency model. It's not a stock. It doesn't really even need any of this 'infrastructure', theoretically, if people actually used it is a decentralized currency in a complete bitcoin ecnomy. The fact that people insist on pegging btc to fiat and conducting all their business with fiat is the reason why btc needs all this infrastructure and is also the reason why btc isn't very popular and doesn't have a higher value.
We'll always need trustworthy exchanges, won't we? And tools like bitfinex, and secure wallets, and payment processors that allow businesses a better gestion of their sales in BTC, are not in any way detrimential to the decentralized nature of Bitcoin.
It's irrealist to think businesses will take to risk to go full Bitcoin. Many like Overstock are keeping a percentage of the Bitcoins they get, and I think that it's a great start, and that this percentage will get bigger in the future as trust in Bitcoin augment.
