I don't buy blu-ray movies anymore but I recall reading that the PS3 was one of the best players around.  Wasn't that long ago, either.

Really? Was PS3 the only bluray-player and do you assume that all Xbox One owners did not own a ps3?

Already had a couple seperate blu ray players but now the X1 is my primary living room blu ray player. Love the 24hz mode. Works great. I'm mostly digital only though.

When I finally get a ps4 or xbone I certainly don't intend to play blu-ray movies on it. That's physical wear to the optical drive which will likely be expensive to repair on either console. Laser's don't last forever. I've got a couple ps3's and a dedicated cheapo blu-ray player which I will use. While consoles have a high value and high repair costs its better to use low cost devices that perform just as well and cost very little to replace if necessary.

It's not just the optical drive you are wearing out you are also powering these consoles for even longer than normal which is more likely to lead to other hardware failure. Let's say the current ps4 and xbox one have an expected lifespan of 5000 hours before going faulty. That's a completely random figure I've just made up but if you played movies for 1000 hours on your ps4/xbone then clearly you have shortened its useful life for playing games, possibly taking a year off its expected life of 5 years. Same issue with any sort of video playback. Better to use low cost devices which are cheap to replace and consume far less power saving you money.