If you are thinking about the USD value of BTC, then you are really just calling a rose by another name - you're still buying/selling in USD.  We need more goods and services available to users of BTC, we need more people using BTC to barter. That attaches actual value to BTC, rather than perceived value. Sometimes, it seems like everyone is just interested in how much USD everyone else thinks BTC are worth.

If that still doesn't make sense, how about this: Now is the time to accept BTC as payment and convince everyone else that now is the time to buy BTC