Thanks I appreciate all the help. If it wasn't for you and your reviews, I would of bought the Miracles and probably wouldn't like the sound signature.
Another thing I would like to point out. I honestly could barely tell the difference from Klipsch S4 and Monster Turbine Pro Copper. I think the Coppers have tighter bass and the instruments are more detailed by a tiny margin. If thats the difference between $300 IEM and $100 IEM... then I don't even know if buying a custom IEM is worth it.
Are they durable? Im probably going to use it everyday. Will the colour fade?
and if one ear is not working after a few years, will Rooth fix it for me at a cost? how much
Speaking about the law of diminishing returns, while I agree in general, my opinion is different with some gear. How do you quantify the added emotional ability of power and dynamics to go along with a 3D recreation of an event that puts you in front of the performers and allows you to make out instruments and things in the recording you didn't know were there, or more likely just weren't recreated properly therefore you couldn't comprehend them. Sure, both a custom IEM and the S4 or Copper reproduce music, but to me the difference is well worth the price.
There are two different things going on in the quoted posts. First, the Copper vs. the S4...the Copper is more difficult to drive, so the source will play a large role with that IEM in performance. Sure, the Copper is better, but a source an minimize those differences while the Copper can perform a good deal better with another source.
The difference between the DDM and the ES10 IMO can be largely due to IEM vs. headphone as both have different presentations and, especially if one uses one of the two more than the other, that will sound more normal. And the IEM will be easier to drive. I used the AMP3 Pro2 with the ES10 and thought that was a great pairing, but with an iPhone didn't care for the ES10 nearly as much for example.
Also, it depends on the listener, music, and environment. If you are listening to music while concentrating on other things from your environment to a book or work higher technical performance will be wasted, and loud background noise will reduce the ability to perceive the superior technical performance, however high levels of isolation do help with this. Also, I have heard music that has had no depth of soundstage and/or is just poorly mastered so the benefits of higher technical performance is lost, not to mention lossy files losing some of the emotion that can be recreated with high end custom IEMs.
The money for the LS8 (or whatever high end custom) is over 10 fold the S4 and if that is worth it is different for each and every person. If you don't have it, don't spend it. And expectations can be dangerous; if you are looking for the holy grail you may find it or you may not, and you can't return custom IEMs and will have to take a large loss in resale. Personally, I think custom IEMs are worth every penny, but then I have lossless (and 24 bit) music, a great source, and spend quiet time listening.