Sure LCD2 without a good amp is worthless.
EL8 is better out of a smartphone but with with a good portable amp my modded t50rp was better for a fraction of the price aside the fun to mod them.
If you consider price I would take a woody SR-225e (plus dynamat, sorbothan and felt mods) or SennGrado over LCD-2, EL8 or HD-650. I've never heard a t50rp but did get to hear the Alpha Dog and Prime which are modded t50rp unless I'm mistaken, they are not even close to a woody SR-225e which has faster tighter bass, goes just as low, mids like a HD-650 and the highs that get close to a HD-800/T1. It doesn't have the sound stage of the HD-800/T1 and isn't quite as clean or resolving but at $275 its a much better bargain IMO.