Unraveling

Is it that books simply are not made as well as they once were?  My copy of Last Nights of Paris, already pages are starting to come loose.

I am not, as a rule, hard on my books.  I've read books to pieces before, but this book I have only read once before and the spine is not damaged at all.  Yet, there they are, pages six through nine detached and sitting every so slightly out of place.  Was it a bad copy run?  Was the glue not quite right?  I check the binding - a sloppy job; the glue is uneven and some pages are barely secured.  Is this the new norm, or just my bad luck?

A paperback book is never forever, but I want them to survive beyond a few turns of the pages.