What I've always felt about the Erlkonig is that it's an IEM for audiophiles who love sound but not so much the hobby. You get one really high priced TOTL with adjustable sound signature, swappable faceplates and everything you need to take your sound experience to an extremely high level - you don't really need anything else, you can happily save the rest of your money and never even make a HF account lul
I personally don't agree with the view that since you didn't enjoy something as much as I did, you heard something else or you didn't hear it right. Tips and seal do make a huge difference of course, but once you've managed to find tips that work well the experience wouldn't be that radically different. I am not arguing that it's a good IEM, nay - it's an amazing performer (and I've ranked it T1 for a reason), but I also felt it wasn't unique enough to make it interesting for me to purchase.
And I do agree with
@ceeloChamp that as an IEM alone it doesn't warrant its price tag. I'd say the luxury packaging, switches and faceplates account for a rather decent portion of the price increase