They might isolate a bit much for your purposes, but the earbuds I prefer are Panasonic HJE900s. The reason I mention them here is that they are constructed to be pretty bomb proof. The bud housing is Cubic Zirconia (you will actually see them referred to as CZs on forums), and the cords are easily replaceable. These list for around $250, but you can often find them for closer to $125, sometimes close to $100.
The other earbuds that I have enjoyed a lot are Denon AH-C700, which have been replaced in that line by the AH-C751. A metal body, which I again values for durability. Another one that I have found can be gotten for closer to $100.