As long as you like them and enjoy them, that's what matters most. Trying to argue against the LCD-X in an LCD-X thread is for sure a losing battle, so I try not to drag conversations like this on with rant after rant, but I will chime in every once in a while if I see someone asking a question I think I can definitely answer from personal experience. I found their dark signature pleasing myself, but a combination of a preference for my 560's more linear signature and a displeasure with the X's immense heft that pressed down on my head to be fatiguing caused the X to not last too long with me. I'd for sure recommend them to people who can take the weight, but I just can't recommend it to people who want the ultimate in neutrality and/or want comfortable headphones. Both Innerfidelity and Headroom frequency graphs show it to have less upper midrange and lower treble compared to even the LCD2 and LCD3, and my subjective impressions agreed with them. However, they weren't too unlike my HE-400, which I loved for 2 and a half years prior. I could have just as easily fallen in love with them as my 560-- but again, the weight. Whenever Audeze makes an LCDX-2 with a suspension strap and a slightly airier signature, I'll be for sure having to try it out again, but in the mean time I just might have to save up for an HE1k (and no I'm not resorting to having to buy some stupid 3rd party strap when the company should be doing it themselves.)
+1000 on almost everything you said... except the 3rd party strap.
check this out:3rd party strap (Click to show)
looks pretty legit imo :)