Does it makes sense to use a TI as a simple MIDI machine?

[Unknown Sound]

It's perfectly fine. I use MIDI only (no VC or USB). Part of this was due to the fact that early OS versions had much better stability when using MIDI, particularly external clock timing and ARPS.

I will occasionaly plug in the USB port for Patch management but can't see how anyone would want to program sounds from the computer with a mouse...that's what the knobs are for!

-US.