I love that:

1. People are still making C=64 demos.
2. They look better that I remember from the 80s.
3. They sound exactly like they did in the 80s.
4. They run perfectly in my emulator so I don’t need to actually figure out how to get stuff from the internet onto a floppy.

UPDATE:

1. I love that the resolution of an image after Tumblr is finished scaling it is STILL significantly higher than the actual C=64 graphics themselves.