Good post ClubNeon.
When it comes to hi-res PCM vs DSD I think the choice is moot and either is probably going to get every last bit of possible performance out of the gear in a given system. Speaker placement etc. will be more of an bias to sound in this case. FWIW, I go DSD from OPPO>PCM to Reciver to do exactly what you are mentioning. Sounds great.
I think the reason Hi-Res is worth talking about, and it is growing, is because the emphasis it supposedly places on quality, and re-mastering. Digital\portable is sexy right now, and high end companies need to appeal to new buyers.
Easy marketing:
ie. dynamically compressed, flat mixed, lossy compressed mass media VS Something that is mastered with the intention of being a reference recording, from the start. Regardless of genre of music.
Different mentality and philosophy for each product. The market for a CD vs the market for SACD(DSD) is not the same.
I know what I would choose given the same price for each.
The main thing to remember is its "buyer beware" when it comes to how the hi-res files were made. Are they upconverted from lower res? Whats the point if they are.
"Hi-Res" is the new "redbook" when it comes to teasing the wallets out of an audiophiles pocket.
Here is a freebie site to check out what playback can be when the process is intended to create reference hi-res material.
http://www.2l.no/Blue coast records also has trial songs free for download in hi-res formats.
Enjoy!