Why is Minecraft PS4 edition more expensive on disk than it is on the PSN store?

These days physical copies are usually cheaper than digital downloads after a while, so I was wondering if there's a reason that the digital version is cheaper than the disk version?

A friend of mine has the game on disk and it came free with loads of texture packs. Is this a feature of the disk version or does the digital version come with this too?

Is there any difference at all between the two?

No idea why you think that physical copies are cheaper than digital downloads?

It costs far more money to manufacture a disc, print packaging and send a physical copy to customers or retailers; than to host a digital file on a website.