I have to admit, I felt the same as you until I added a Slimdevices Transporter to my system. Before that I was using a fairly inexpensive USB DAC, the Stereo-link. It's not that it was bad, it was just a little dry to my ears. Same basic stuff as you EAC/FLAC/Foobar/ASIO4ALL etc. Now, with the Transporter, I am actually playing more digital than vinyl, for the first time.
Also, look at your system. Is a $275 soundcard really in the same bracket as your other components?
Also, look at your system. Is a $275 soundcard really in the same bracket as your other components?