I buy physical copies of anything I'm likely to reread. I prefer physical books but if I want to fit everything I read into my flat I'd need to throw out bot my partner and everything we own.

Herself(my partner) on the other hand buys books she never intends to read. She'll buy books with pretty looking spines or covers. Or she'll buy something she enjoyed before but doesn't intend to read again as a physical reminder of the emotions she experienced whilst going through it the first time round.

These opposing purchasing priorities have resulted in an 8 year argument which I have dubbed the Bookshelf Schism.

I should also note that I typically have at least 3 or 4 copies of the Hobbit at any given time on the off chance I can convince someone to read it for the first time.