One more benefit of discs is that you can get the games much cheaper second hand than you might get them at an online store, especially if you still into 360 games which are still sold in a lot of places, although the store has some very good sales on sometimes too.

If you are not planning to get another console anytime soon: I would say Series S, because it is the newer console so will have more games devoted and developed more for it in future than the PS4 pro.

Also, it plays Xbox 360 and original Xbox games that you can buy from the store, not to mention the digital Xbox one games... so it has an impressive amount of titles of both old and new catalogues that are still great to play today!