There are already a few libraries here in Canada that loan out eReaders (Kindle, Kobo, Sony) with a selection of bestsellers and public domain books on them [
example]. I'd think the publishers would like the friction created by users having to check out the devices at the library.
The expiry of ebooks is ridiculous. These aren't even new bestsellers that MacMillan are offering, they are backlist and not likely to be checked out often.