It is difficult to get at precise data, but when you look at actual, real-world bitcoin use to pay for goods and services, you see mainly Silk Road, Satoshi Dice, and a few others. Who is paying with bitcoins at namecheap.com or wordpress.com? Very few, an insignificant fraction of their customers.
And don't believe for a moment that Cypriots and Spaniards are buying bitcoin to flee from the euro. If anything, they buy gold or simply transfer their money to foreign banks. The Cyprus myth has had an effect though, it made more newbie speculators buy bitcoin.
So by how much has real-world use of bitcoin increased? Before the bubble, real-world use justified a bitcoin price of $2. If that real-world use had indeed doubled since then, it would now justify a price of $4.
Then you have some long-term speculators, who keep the price somewhat higher, simply because they believe in a fair chance for a bright longer-term future for bitcoin. I am one of them. I bought bitcoins at $10. I might be tempted to buy some more if the price falls back below $20, but that's about it.
Bitcoin will not live forever. It may get cracked. It may suddenly be superseded by something else. It may get stuck in its own technical problems because of its inability to handle a much higher number of transactions than it can barely handle today. It may get destroyed by its enemies. Its grand idea will certainly live on and may never go away again, but its first incarnation may not live for very long. That said, I'd be very happy if I could still use bitcoins 10 years from now.
Have you not seen silk road? There are many thousands of sellers, it's huge and growing, it's WAY more than doubled.