It is for many cases of computation! I can do my bill paying, writing, and much of my coding work from a raspberry pi; for those things, it’s a suitable replacement. These days you can get an entire phone that outputs to your tv that is hackable, cheap, and has access to relatively quality proprietary software.

And yea, a DVD is in the dame league, but it’s a format that deteriorates with age. Not exactly an investment format like vinyl. At least you can back up MP3s and play them with any software you like.