if you have been looking for years, then that's a good reason to buy it indeed, but for me it's a hobby, not a MUST to have have some particular songs, so i spend time on them and even derive some kind of satisfaction after hours of searching to find a good ripped song.
also i rip a LOAD of cd's myself, i might tag some and release them
so ppl know they come from me (well under a pseudonym afcourse) and see it's good quality.
but as of yet i don't have to much rare numbers mostly popular numbers not worht releasing, ppl will just download the one with most hits (even if it has the kkackkkakkkkackkka)