Choosing the right medium for you and your sound is crucial for your audience. Are your fans vinyl fans or are they still CD listeners? It is clear that your audience want to support you / the band, want to remember and want to take the experience as a physical product (pressed) home with them.
If you then also stand at the merchandising booth after your gig or your presentation, sign the product and perhaps give them an autograph card (e.g. with a download code) and take the desired fan photo, you will win their hearts and make your event last much longer.