I am not considering a switch to frame with the BB30 standard because I want BB30. I know that the weight/stiffness increase will not make a difference for a rider at my level. However, several of the frames I am considering only come with BB30 so it is a variable I must consider. As far as I can tell, there is no downside to the BB30 standard and for me, probably no upside either. It's just a matter of seeing which system will fit the frame I end up purchasing and then either purchasing a new crank and BB or purchasing an adapter for my current crank and BB.