CD v. SACD

I was planning on buying a new CD player (Rega Jupiter 2000), when I read a few reveiws of the Sony SCD-XA777ES, which used, I could buy for about the same amount as the Rega new. I currently have an extensive CD collection, but no SACDs. My question is whether I should just go ahead and buy the Sony, or whether a dedicated CD player, like the Rega (or others at its price point) are significantly better in their CD playback. Thanks. Tom