My prediction is that the market topped off yesterday at ~$19.00.
Its not too late for you change this prediction.. yet.
Of course potential profit is a big factor of bitcoin's appeal. But that potential only comes from the decentralization and open source.. which is the basic appeal. Why else would the early adopters have bought this virtual "funny money" back when it was $0.05 and $0.25 and decentralized among a couple dozen cryptonerds?
All those looking for a "currency" with a stable exchange rate need to look elsewhere. Obviously, it is not going to be bitcoin.
As for the bitcoin bubble, you are more than welcome to back and do the "told you so" dance when it is 1 USD.