The 240 is still on pre-order.
Prices move, look at the date the thread was posted, were now several weeks on and due to supply and demand prices have moved upwards. Were about to sell out of 120GB today, infact were selling on average 24 units per day.
When OCZ drop 500+ into my warehouse the pricing will come back down, but that probably won't happen for 3-4 weeks as were getting drip fed at the moment.