Well, basically, nothing really against the GUI's, but ... just wanna have some kind of text-based simulator. Don't ask about the reason, it's just smth inside me.
Just wanna have one.
But, friendly speaking, if we'll take for example our lovely MultiSim, which is great in a way, but .. It uses SPICE to get the numbers. All what it does, is converting those numbers into lovelly graphix. So, as for me, I just wanna have those numbers, without graphix and without system resources being spend for graphical representation of the numbers.
Well, I'm in a way, old-fasion fanatic. Still active at FIDONet, still using console mode linux at HOME/Institute/work/etc. Although using GUIs sometimes for PCB development. Otherwise, I don't need GUI.
But once again ... Nothing personal ... Nothing against GUIs ... It's just smth inside me.