I agree. But, I find that I get a much better workout when forced out of the comfort zone. I really noticed when riding the MTB in Germany that I was much more hesitant to shift than before and I rode the same trails in a much larger gear than before.

Also, the FGSS in England in preconfigured for a Nexus 3 ... so when the rear wheel wears out ... I'll replace it with a Nexus 3-equipped wheel from the same company for £100 ... plug and play!