Are there actually gains to be had though? Last time we looked at this it wasn't really profitable.
The current market price is low, speculation is based upon wider uptake which increases with media exposure, and more importantly people writing iIdiot friendly user interfaces. Potential wise it could absolutely explode, but it's most certainly a punt.
One interesting thing is that if anyone here has looked into investment unless you have a stack of monetary assets you get crucified by fees/even bothering to look, not so with bitcoin, mtgox for example charges a maximum trade fee of 0.6%, so if you put £25 in you get 15p in fees 'oh noes'
Also I find the workings behind it absolutely fascinating, after using it and having a wallet with BTC in it and everything guvnah the potential is geniunely world changing.