It's not Canon specially. It's always been like that between US and Europe. The difference basically boils down to business ease and efficiency. First, in the US, sales volumes are much higher. Secondly, the customers are supposed to know the product. They are either enticed by advertisement/marketing or they read reviews from every source they found. They know what they want. So, they go to the shop, tend the CC, grab the box and off they go. Financial and selling cost are kept at minimum. Money spins. In contrast, Europeans will hesitate, doubt, linger, procrastinate before making a decision. They need salespeople to advise, discuss, reassure, convince. And - if they didn't go to another shop - they'll come another week and get the box opened, the content dissected and commented. Keeping a dead stock for rare and evasive customers and employing an army of salespeople carries a high price. Some may say that Europeans make more weighted up purchasing decisions. There's a price to pay for that. Well, you can still order by courier from Amazon US or B&H and pay the taxes on delivery.
That is a hilariously opinionated view of European vs US buying habits!
What is funny is your response. Empirical data exists for both the number of camera stores geographically and for the sales breakdown by region (US, Europe, Australia, Asia etc.), so it is quite easy to show that higher sales volumes DO exist in the USA. Now add in banking data about credit card figures and you'll see that Americans have a much greater propensity to charge camera gear to their credit card -> economists' refer to this as the "Wanting of Waiting" or in simple English you can have it now for no money down. Having lived overseas for 2 decades, I've observed first hand that buying habits are totally different between Europe and the US - as different as Chalk n' Cheese. I lived in Spain for 5 years and you cannot use a credit card in many stores, not without your Passport or National ID card, it is a criminal offence to bounce a cheque (check) with a mandatory 1-year prison sentence, so 44 million people primarily use CASH (also partly explains the higher jobless rate and the impact of lower availability of credit on economic growth). In the USA, consumption (individuals + private businesses expenditure on 'Goods & Services') is 70% of the economy (GDP), in most European countries it is between 40% to 50%. Americans spend more, every day of the week whether they have cash or not (doesn't matter they can charge it). That equates to one heck of a difference between US and European buying habits.
So come on, you hesitant, doubtful, lingering, procrastinating Europeans, you heard it. Be more decisive and forthright like our American friends and you too can have great prices!