Should I buy SACD's or Buy Quality Multi-Format CD player and use Old Digital CD's?

Streaming from Tidal is the way to go.

Your saying stream and not worry about SACD's or CD's? Are we talking SACD quality or CD quality?

Forgot to ask, I take it a good DAC will have to be included in my system and what model, brand would you suggest?

I’ve been looking at some SACD players, but if you want multichannel, there aren’t too many options.  I liked the classic XA5400ES for multich, especially since my pre/pro could do DSD over HDMI.

However, with the ability to just download DSDs, I think the best way to do it is to just download them, getting a bit perfect copy, and use a multichannel DAC like the e38 or a surround pre/pro that can accept multichannel DSD input. It’s getting real tough to justify a dedicated multichannel SACD player if you can get the few decent multichannel DSDs directly. 

As much I love the convenience of streaming over Tidal, I still very much enjoy spinning my SACD’s and 24bit HDCD’s. 

It really boils down to one’s personal preferences. If you’re shopping for a player, Oppo UDP-205 with a very decent internal DAC to consider. 

Like it or not, HiFi Streaming and High-Rez downloads is the way forward.