If you want to get noticed, send me a cassette tape (or some other obscure format)! I guarantee I will sit up and take notice, especially if it’s well made, the correct length and has a great inlay or cover with your info. Even better if the inlay has a punk rock aesthetic.
The object itself, as important to the experience as the music contained within it. The ‘story’ of where it’s been, who has previously played it means we often anthropomorphise these objects, imbuing them with a life and even, a soul. That connection is extremely difficult, if not impossible, to form with digital music and, in fact, some would argue that music cannot and doesn’t exist digitally.