In «The Internet sky really is falling» she reminds us that it's not
simply lack of capacity that is the fatal flaw, but also a shortage of IP addresses and a failure to have an agreed - upon, effective replacement internet architecture available.
For those not offering ebooks, the reasons range from
capacity issues (
simply not any money to get into the ebook game, or
lack of tech support) to strategic caution about when to start spending dollars on ebooks (waiting to see what the best platform will be), and more.