There is nothing else you can effectively do with Bitcoin. No goods/service economy to speak of.
So amazon.com doesn't offer any goods to speak of - interesting world view you have there
I alone spent ~70BTC on Amazon since spendbitcoins.com went live but yeah - nothing to speak of...
Funny how people were all excited about Bitcoin's price a little over two months ago when it traded at about 8 USD as well. We had a bubble, the price was hyped and now we've come back to the price level before the bubble again - so what? Gavin predicted
this would happen and quite frankly: we all should have known.
The "value" of Bitcoin can't be determined by a quick glance at the current price from Mt. Gox. Give it a few years time and then lets talk again.
Let's face it: the blockchain isn't going to go away - Bitcoin is here to stay.