Originally Posted by
pdlamb
IMHO, dyno hubs are definitely worth it for commuting. But since you're talking about touring, I don't have a strong opinion.
I'll second that. Cell phone service and power was pretty darned available in Peru... an nice bathroom not so much. In the USA hiding at a McDonalds during the heat of the day drinking a $1 beverage using wifi, AC, bathroom and power, priceless.
Edit:
Always on GPS for tracking and route saving would push me toward a dyno.