Originally Posted by ApK
The answer is: you might not have the same rights because they are different things and different factors might go into the calculation of a policy.
Should you have the same rights of return as a meal? Can you eat it then return it?
Returning a book requires some effort on your part. That effort--driving to the store, packing a box, whatever--is some small deterrent of abuse. That is calculated in the policy. To return an eBook, you might need only click a button. The ease makes it more subject to abuse and policies may need to be adjusted accordingly.
The meal analogy does no hold, for obvious reasons. And there is another perspective you can see it in: you could purchase, read and return paper books with cash, never leaving any trail of what you are doing, which, arguably, would make it easier for cash paper book purchasers to abuse the system than it is for someone whose name, address and credit card information is on file.
I guess the argument of treating ebooks differently than paper books in terms of returns/resale/pricing is as old as ebooks themselves, but I always enjoy a friendly debate.