Frank Sinatra mfsl sacd

Thinking about purchasing a couple of these and would like to know if they are worth it
Yes, definitely.
I have the MFSL CD of "Songs For Swinging Lovers"; the sound quality and performance/music are simply stunning IMHO. One of mine, and my wives, favorite Friday night, let's relax, CDs. I can only imagine how good the SACD version must sound.