Yep, you will definitely save some money on cables.

I really don't think you would regret the MH system - just prepare for a learning curve with the software, especially the logic of signal routing which has some traps for young players.

Just an FYI, since I was already set up to look at latency, I ran a couple of other tests with Logic: (1) with our band recording template with an audio signal and some master buss plugins installed but not enabled (15 msec), (2) same setup but with no plugins on the master buss (3.8 msec, identical to the bare bones test), and (3) a MIDI keyboard with the Keyscape VI, measuring the start of the MIDI note to the start of the recorded audio note (9 msec).

I had no idea that the master plugins were having that much impact - they are gone from the template!

That's why latency is such a hard thing to nail down - it is influenced by a lot of variables and as you say, some people are more sensitive than others. But the base measurement of 3.8 msec using a bare Logic project is stable and useable for most applications.

For using outboard gear with the MH system, Logic has a great I/O tool that automatically measures and compensates for latency so you can mix in a sample-accurate hardware-processed signal.