Originally Posted by Elfwreck
The Amazon ecosystem
1) contains more content
2) connects to substantial non-book content
3) doesn't restrict large portions of the storage space on the device for Amazon content only
4) gets more freebies and bargains
5) comes with much better refund options.
B&N has actually said that if they deliver the wrong book--as in, you click download and what shows up is not the title you paid for--they still won't refund your money. They've also offered bizarre workarounds for their flawed file naming system whereby new books in a series overwrote old ones.
Amazon's ecosystem, walled-garden though it is, works to be all a consumer really needs. BN's ecosystem just tries to keep people trapped without bothering to sort out what they'd want to be comfortable with that.
I believe you are forgetting another important point, which might condemn B&N. You can buy Kobo, Apple and Kindle all over the world and access their content again all over the world. Even Sony does the same.
B&N has constrained itself to the US. And apparently the US market is not enough any more.