Mature altcoins are never dead.
Indeed, we have so many new coins added with premined, or hidden blocks, for pump and dump... The Bittrex thread gives some insights about what happened...
Junkcoin have none of these issues, and is mature... The price is low today, but who knows the future?
I remember the price was low before last Christmas, then it skyrocketed after the bitcoin rally. Perhaps it will skyrocket again after the next bitcoin rally.