No one is powerful enough to manipulate market for long.
Except when the big exchange uses bots to fake volume. Like mtgox and the Chinese exchanges.
peligro + 1
lol madken -1
btc-e is only doing 15k day trading (300 coin max at play at any on time/order) thus very easy to continually mess with prices on these crappy exchanges that have locked down deposits and withdrawals to only be useful to the little fish
If you think bitcoin is undervalue right now, by all mean, buy it all up to the price where you deem "fair".