Great. I love mountainbiking and was serious about it for more than ten years now. I agree with all you are saying. I would add that there are still opportunities to improve and build better bicycles. Especially the recumbent bikes community is very actively hacking better machines. I have some friends involved and was able to try several prototypes - if I have the extra money to invest I would definitely support this. It is innovative, useful and fun! I have also used a bicycle for commuting in every city I've ever lived. It is probably the best way to explore the surroundings and get to know the city map. Just note: I have experience only from Europe and Eastern Asia. David, I would be happy to visit you someday with my bike in Padova.