Price of KSE 1500 dropped to $2499 recently, tempted...
That sounds encouraging. Do tell - from what vendor have you found KSE1500 for $2499?
I've been considering the KSE1500 for awhile as an upgrade to what I have, which I love*, for coffee house work sessions and such.
Only hesitations about the KSE1500s, other than the price, are few, and not at all huge:
1. Microphonic nature of the cabling - I had this with a set of earbuds some years ago that were quite good - custom-sleeved Etymotics ER4s. The only knocks against the Etymotics were the microphonic noise every time you brushed the cabling, and durability. Fortunately, customer service was consistently excellent.
2. Durability of the cabling - have read here that there's some kinkiness afoot. Let me rephrase that. The cable can kink and therefore be susceptible to breakage. I have heard that Shure customer service is also excellent, but I don't really want to find out, iykwim.
3. One last concern is buying 2- to 3-year old product when there might be a new version/upgrade/model coming (no idea, of course). While that has nothing to do with *this* product, and while per your post it just got $500 more attractive, it remains a concern from a residual value perspective.
The pros of the KSE1500 (accuracy and evidently a moderate degree of isolation) in my mind well outweigh the cons.
* Currently, my EDA (every day audio) are Oppo PM-3, Oppo HA-2SE - connected with equally impressive Silver Dragon cables, thanks to Drew's patient tutelage at Moon Audio. Only thing is there's no noise isolation from the Oppo PM-3 to speak of, and I tend to work in noisier environments these days. Will hate to part with these if I do get the KSE1500, but I've only got one head.