No change since I bought them. At the time, each of the books I picked up had a hard crease or two in each of the books. That's because I went through ALL the books on display, pulled out the ones with creases/minor internal page damage, and bought those for myself.
I figured that it would bother me much less than other customers, since if I liked the game I would be ding-ing up the books anyway.
I scored a used PHB last week, and if my gaming group starts up again, I'm going to pull out the pages and put it in a binder so that I can add stuff from splats I want to use.