Are cassette tapes making a comeback?

While the world has gone digital, young independent music artists are releasing their music onto cassettes.
Australian music artist Setlla Donnelly has just been named triple j’s Unearthed Artist of the Year,┬ásays that releasing her music on cassette was more affordable than vinyl.
“Vinyl is very expensive, so for a first EP that would come at a massive cost, and unless you have a big label backing you it’s not feasible.

Do you still own any cassettes? Do you keep them for the sake of nostalgia? Are there any stores that sell cassettes anymore?