For me the million dollar question is still how do the LCD-2 compare to the HE-500, because unlike above posters I have no intention of owning them both. My K1000's still rule the world, and is just looking for a number 2. To me the basic characteristics seem that the 500 has a little more soundstage, is brighter, works better with classical and is more comfortable. The LCD-2 is nicer build, very good bass and warm sounding. They both have the planar advantages: the exceptional midrange and speed.
Someone having owned or owning both, how correct are my observations so far?
Also HE-500 needs more than LCD-2 a powerful amp. 1W according to HifiMan, and it scales well with bigger amps!