WHICH IS WHY ARMSTRONG HAS BEEN ABLE TO TRAIN FULL TIME TO BECOME WINNER 5 YEARS RUNNING. THANKS FOR PROVING MY POINT.
Europeans tend to be more into cycling -- there are clubs and races everywhere. Not so in the US. Moreover, the number of professional cyclists (i.e., those who cycle full-time) is much, much greater in Europe than in the US. And sponsorships are far more plentiful in Europe.
All the above is traditionally true. Only in the last 4-5 years, as Armstrong has been winning, has the US begun to catch up. Nonetheless, Armstrong notwithstanding, the Europeans still dominate the sport and remain better equipped (sponsorship money, etc...). So I don't think I proved your point.
He has won five years running because he has been the best cyclist five years running -- period.