I just canceled eMusic subscription in favor of Amazon’s Mp3 Download Store.  The main reason for this is because with Amazon I can download only the songs I want without having to pay a monthly fee for a bucket of downloads that I have to use or lose.  Plus Amazon’s store is also free of digital rights management (DRM) so they will work on any computer or device in my house.
While eMusic has an awesome selection of independent artists, I really do not grab too many of those on a regular basis.  Besides, for those artists I like to have the actual compact disc more often then not.