Is it worth to replace the Fuze stock ear phones with expensive ones?

[jk98]

There are some good inexpensive earphones such as the Sennheiser MX400 that cost only around $10 or so. The Sennheiser CX300 at under $30 is a good value. The problem with isolating earphones is that they block outside sound. While this might be good in some circumstances, it might be dangerous in others.