Buzz is nothing if not a persuasive salesman. He's been on my case for months to try Etymotics's ER-6 earphones. He finally succeeded a few weeks back and I've now been using them for a while.
I should have given in to Buzz earlier. Understand, I was already using an upgraded pair of UM In-Ear Monitors as recommended by Kevin Kelly at Recomendo. And I used Bose's noise-cancelling headsets when I travelled. The ER-6's replace both of those and give me noticeably better sound over both of those choices.