I say stick with the Red book CD's and put money into a really good Redbook machine. I have both, a Sony DVP NS999ES which does SACD and a Naim CD5i for Redbooks. There are some really good sounding SACD's out there, but on the whole I actually get better sound from the Naim with RBCD's than I do with my SACD's. It all boils down to the quality of your source player.