there is nothing too late engaging on btc investment as long as you have the guts to take risk of either havinf profit of thousand bucks or losing. Well btc price now might be too huge compare when its just starting but who knows it may multiply hundred folds more.
It will never be too late as long as the btc is alive, YES, it might be to high compare when it is just starting but we all don't know what lies ahead. Maybe bitcoin will continue to grow because of it's increasing number of users and investors. It might be legally accepted worldwide in the near future so move now before it became really late.