That's exactly right. Us humans draw association quite freely. Our appreciation of a thing's practical functionality can be damaged by the aesthetic impressions we receive. When we love the look of something, and it performs brilliantly, there's a unity of pleasure that can lead to orgasm.
I must like the appearance of the HD600s more than previously thought, as I am quite regularly brought to the precipice of said climax.
I wish I were braver. It arouses much fear in me to contemplate the disassembling of expensive equipment. Maybe someday I'll have a few spares to practice on, and grow confident in modding.
Just the other day I did mod my Audio Technica IM03 by cutting the stems off a few spare tips, and making spacers for the nozzle so the Sony Hybrid tips will ride higher off the end. But there wasn't much chance of breaking anything important, so it was ok.