Re: New presonus mixer
You're right. The one thing about 96K is the possibility of lower latency, however, that's about it. There are loads of examples that prove that most people (even those in the audio industry) can't reliably distinguish the difference between 320Mbps MP3 or 256 AAC versus uncompressed 192K, let alone between 48 and 96.
There are in theory benefits to these higher rates (if you have that capability already there is no reason not to use it), however, in the grand scheme of things, just about EVERYTHING else should matter more to you because it will make a much bigger difference than 96K vs 48K, despite what marketing departments will try to tell you.
Moving off axis by even just 1 degree on a microphone makes more audible difference if that says anything. The talent, the source, the acoustic environment, the speakers and their deployment, and many other things such as this are where significant improvements are possible.
I find myself posting about this a lot.... so many people are misled into spending money where it doesn't really make much difference - 96K, boutique preamps, converters, master clocks, etc, etc.
Spend wisely - those types of things are ones you should wait to spend on until you've addressed ALL of the other areas of greater importance I've mentioned first, regardless of whether we are talking live or studio (I do a lot of both)