Hmmm, where is the option for $350 or less?
$350 will most likely become the new $300, and I expect a lot of investors to sell off once the psychological number hits. China shouldn't be used as proof otherwise, since the equivalent of $350 in their currency isn't any special number, and 0 free trading allows them to stray further from the overall market.
The OP does not think the price will stop at £350 or less. If the price rise only $1-3 a day, it can run very long.
Well, if the price does rise each day, then you are right in that the bull run can go for a potentially very long time. However, the run is already losing steam, and appears to be quickly coming to a close. The price has dropped pretty significantly in the last 12 hours.