Favorite obsolete formats.....

Worst of the current bunch? Darko and What Hi-Fi are the two that immediately spring to mind.

Yep, Darko seems to be more concerned about appearing cool & hip. Reviewing equipment playing mainly electronic music...yeah, whatever. 

There are plenty of bands releasing albums on cassette & a few synth wave artists releasing albums on mini disc.

Cassettes and mini discs...I still use both, so in my world not obsolete. 😁

Elcaset.   The convenience of cassettes with the sound of reel to reel.
I couldn't afford one at the time, and now I can't think why I'd want one.

Elcaset. That one was new to me. Thank you for mentioning it via this thread. 

Anyone remember this ball of fire?
https://www.cassettedeck.org/bic/t-1
Or this one!
https://www.mentalfloss.com/article/555840/highway-hi-fi-chrysler-car-record-player