Not to mention TV post-digitalization. Nowadays one can't watch TV or streamed videos without getting annoyed over how poor trees, bodies of water or audiences in arenas look due to the compression artefacts. Ironically, I prefer buying a DVD for a few € to streaming a movie simply because there's less visible artefacts.
DVDs are horrible quality though. Compression everywhere and low resolution. The streaming services that I've watched are all better than DVD, at least 720p.
If compared to DVB-T with far to low bitrates, or streaming over crappy Internet connections, DVD's are far better in comparison.
Blu-ray is obviously the better option, but they're more expansive and not always available, especially when it comes to stuff that isn't produced in the U.S.