The copyrights are often dispersed, with different publishers owning different rights. It's not a matter of just "arrang[ing] for worldwide licensing." It's dealing with a completely different set of owners who may have no interest in signing on.
Of COURSE Amazon wants to access customers in other countries, it's not like they haven't thought of it!
> Of COURSE Amazon wants to access customers in other countries, it's not like they haven't thought of it!
Actually, I believe they are not fully aware of the adverse effect these kinds of restrictions have: as much as many people try to explain that it's not Amazon's fault (just observe the downvotes on my previous comment!), it is Amazon.com that rejects me as a customer.
But perhaps I should refrain from commenting, as downvoting based on opinions seems to have become the norm recently.
Of COURSE Amazon wants to access customers in other countries, it's not like they haven't thought of it!