For me, yes. I read e-books and surf the net on a tablet. High-rez displays are far more important for those two tasks than the OS or ecosystem.
Exactly. If a tablet is used to READ, as in, READ BOOKS, then a very small fraction of time is spent interacting with the OS.
Another point is that with Android it is much easier to manually transfer large numbers of eBooks and PDFs. Just drag and drop a whole directory of thousands of files organized in a deep hierarchy. With Apple, you have flat organization in iTunes or iCloud. That's a huge compromise required to use Apple's "ecosystem".