For the record, I think the HP2 is overbuilt, the Triports underbuilt, and the Stax just-right-built. The Lambdas you toss on your head and forget about, and they won't cause you any trouble for decades. Not the sexiest design but they won't break if you sneeze on them, and they'll do right by you if you do right by them.
edit - totally unrelated but my wife put the Lambdas on for the first time yesterday because she REALLY wanted to hear "Under Pressure" after watching 60 Sunset, and since the Melos is gone it was Stax time. She grooved on em and sang along, and unfortunately focused a little on my rig and said "Don't you have too many headphones? Why are there three on the table?" uh oh. BTW yes, she looked ridiculous with those cans on, so I can just imagine what I look like every day. They won't win any beauty pageants, but they'll get the job done.