I'll just get of the way the fact I love The Republic of Wolves music.
But what people are saying politely and true. Cassette's really have no upside. The sound quality is inferior, they are smaller and don't highlight album art, and there are significantly less devices to play them on (that still work).
Vinyl Records coming back is both Nostalgic, amd practical. Maybe I'm old, but I remember when tapes faded away and CD's were the new thing. Everyone was happy to get rid of cassette tapes like 8 Tracks. People are just trying to cash in on the generation that grew up in the 90's. Look at the movies that have been released in the past few years.
Anyway, cassette's are really useless. I don't expect people to go backwards and start using car phones.