This. I would gladly play a bit more for acid-free paperbacks that don’t turn yellow and brittle. I am concerned what my current book collection will look like

This. I would gladly play a bit more for acid-free paperbacks that don’t turn yellow and brittle. I am concerned what my current book collection will look like in 10-20 years, and for this reason have been considering hardbacks over paperbacks (which isn’t always better quality but there is some positive correlation there).