The fact is we need the speculators. The speculators keep the trade volumes high enough to ensure liquidity of your BTC. Without this there would be much trepidation from casual users - if they know it is very hard to exchange their BTC why would they want to accept them as payment? The speculators will move in early, just because they know other speculators will follow! So it is really the speculators that bootstrap the currency valuation as I see it.