03-09-11: JyleeJylee, your statement is all certainly true (a 1TB SSD costs around $3000 these days), except for the part about irrelevance. An aspect of the question about sonics that was addressed in my posts and some of those by Darrell concerned the possibility that sonic improvements might result from replacing the computer's relatively small internal drive with an SSD, while utilizing a large external HHD to store the music files.
SSD may sound better than magnetic HD, but it's largely irrelevant today because there isn't any SSD large enough to store the music collection. I have 600GB+ of music from CD, DVD Audio, and HDTracks. It's not practical to build a disk array to store all the music.
As you have seen, Darrell described replacement of the internal HHD with an SSD as a "no brainer." And my comments provided technical rationale for why doing that MIGHT produce a sonic improvement. That rationale applies regardless of whether the music files are stored on the small internal SSD or on a large external HHD.
Regards,
-- Al