It look like the SHE3570 is the same thing as the 3580. I'd go for that - I thought the 3580 sounded significantly better than the 2200 no matter the genre. I can live with its construction. For a $15-20 earphone it's fine - it's all plastic and the cables are a little thin but again it's $15.
The VSD1 is definitely coming.
Subway and bus aren't exactly demanding use for IEMs, the 3580/3570 should last just fine with moderate care. I haven't had a set break down in two years.