who is buying at 400? the price has never been at 400. the question isn't how much for me. its when. and by when, I mean when some entrepreneur creates a uk based exchange for me to use that I can quickly send my fiat into and out of, without sepa or ukash or some long winded, arse farced, so last year way to deposit or withdraw. till then I fantasize over the localbitcoin prices and a bank transfer but they are way above gox and way way above the smaller exchanges. and thats it for now. I don't trust sending my hard earned yet worthless fiat abroad incase I lose it.
id say around the £25-35 is the bottom for me. about 1.5-1.8k is the next top. just a rough guess though.