I do not think the bitcon price will fall below $400 any more. The mass adoption will support the price.
Agreed that mass adoption in BitCoins is the way to go forward - people need to understand it can be used for secure transactions - explain its features of confirmation and diversified block chain.
The average fiat user wouldn't have a clue how financial transactions occur, so there needs to be an education initiative.
Only then will it hold above $ 400.