There is AKG K518 LE which is discontinued by manufacturer? should I be worried?
Extra Q:should I buy a AKG K518 or Panasonic RP-HTX7.
LE as in limited edition?
Anyway, eventually all headphones will be discontinued but some rarely may be for certain failures/low sales. The important thing is that you read enough threads or reviews on something you are considering that was discontinued to find out if it was any good or not.
Also consider the problem that may arise with outdated headphones in terms of warranty being expired, or not available.
However, just because something is not made anymore, does not mean that you should be worried, as long as you do research what you are buying.
Here are a list of discontinued headphones off the top of my head. Read up about them, then decide what the answer to that question is based on these.
Grado HP1000, plus everything that doesn't have the "i" suffix
BTW, LE probably means "limited edition." Similarly, the 100th Anniversary Mustang and Lynx RS are out, but so are the Crown Victoria and Pinto.
Short answer: not necessarily. Being outdated just means they can do better, but that doesn't make an older product bad. By comparison maybe, but overall, not necessarily. It depends on which product we're talking about here.