Thanks!  I am solo mining but it's more like heating my computer room than buying lotto tickets - my best ever share was 3.11G when the difficulty was over 7.5T which is still a long way off.  I just like the pretty flashing lights really.  
 I also have a decent computer beside those miners creating Bitcoin vanity addresses and occasionally looking for Bitcoin address pairings (partial collisions) so it gets pretty warm in here.