Technically, to record at 128 discrete locations would require the mixer to combine them faithfully in, what, 128 to what power number of ways to choose from?
When I see the high channel account I think that is for movie theaters. If you check out the thread I link to above it lays out how most mix studios are setup in a 7.2.4 format and the highest count they generally use is a 9.6.6 format.
And even audiophiles to check out any and all latest technological developments that could prove beneficial. "Prove all things; hold fast to that which is good."
This is why I think I adopted object based audio and not SACD, it was too expensive to buy new discs at $20-$50 a pop. Now, $ a month and you get everything? losless, hirez, and object based audio? Not being able to use it all is simply a waste if you are already paying for it in your subscription.