CD Player: Vintage or modern ones?

 I do not know of a streaming service that outperforms multi-channel SACD ...

Have you tired Qobuz larger FLAC files on a higher end streamer and DAC setup? It's not possible to hear any difference.  My test subject is just me.

So interesting… I think would be the only way I’d listen to an entire album, streaming as comfy and good it is, makes me nervous changing song from one album to another, maybe just get a transport for my Aqua La Scala? Would be this option better than just get a 1000-4000€ cd player?

You will have to find out, comparing the two options. Probably, your hifi dealer is able to provide the respective gear for a few days.

As you own already a superb dac, you might want to go forward with a transport. As said, try to listen to your options in your 4 walls. Even with two or three different transports in different price ranges. That's what I would do.

At the end of the day, nobody can give you a final and bullet proof answer to your last question. Only you can.

Thanks eagle, wise tip.

I was in a similar situation when my Audio Aero CD-player broke down. With (too) many CDs I was recommended to go for a used Accuphase DP-67, around 2008 considered as one of the best CD-players around. Indeed, it sounded really great. But when I connected it to my Merason Frerot DAC it sounded so much better. Obviously, modern mid-priced DACs are much better than the ones in state-of-the-art CD-players of about 15 years ago. So if you want to buy an older CD-player, focus on the quality of the transport and add a modern DAC.

My next observation was that all the CDs I had collected between 1990 and 2010 sounded mediocre compared to streaming them in high resolution on Quboz. So I sold the Accuphase, and had the Audio Aero repaired for the occasional time I want to listen to a CD that is not in Quboz.