I did always enjoy the way my Grado SR-80's sounded. I ended up moving on though because I found the ear cups to be rather uncomfortable on my ears for prolonged sessions, and the open design just wasn't for me. Not that the open air design sounds poorly, because it doesn't, I just needed a little more sound isolation from closed designs for most areas where I listen.
I ended up replacing my Grado's with some Audio Technica ATH-A900's. The Audio Technica's are rather large and goofy looking, but boy do I love the way they sound. They're extremely comfortable and I love them. Had them for probably 5+ years and they're still going strong. No idea what I'll look to next.
Enjoyed reading your review, keep it up!