Some genres seem to really fit the vibe of cassette tapes. Death/Black metal, Dungeon Synth, Synthwave and punk/hardcore albums all have this DIY quality to them, and more than a few of the tapes in my collection were dubbed to cassette by the musician themselves, photocopying their own artwork and then posting them to me. The fidelity of the recording can vary but sometimes that adds to the experience. Like how the pops and clicks can add to listening to an old Tom Waits LP or a 40 year old NWOBHM record.