Why Purchase A CD Player or Transport ?

Weird question. Why would any "subset" sound better through a CD player ?

Some people prefer physical formats. If you have a good sized collection of CDs and SACDs that you will play occasionally, it might be worth your time and money to upgrade your SACD player.

If you’re really100% committed to vinyl, you should put your money there.

Why purchase a CD/SACD player? Because it can sound so damn good.

All the best,
Nonoise

My streaming now sounds better than playing CDs.  The only reason I keep my transport around is to play stuff that isn’t available to stream. 

Weird question. Why would any "subset" sound better through a CD player ?

Perhaps that was poorly worded.

Are there a substantial number of well recorded performances recorded on CD which can’t be found via streaming services, or where the streaming version is sonically inferior to the CD?

I'm considering the purchase of the PS Audio SACD I2s transport which is on sale for $3999.00.  I'm thinking that I can rip my CDs, never listen to my SACD and save the $3999.00 + $1k I2s cable and additional Timber Nation Tiger Maple shelving/stand.  That said, saving has not been part of the equation where the saved money negatively impacts the listening experience.