This just dawned on me! Now why would you want a DVI-I connector and vsynced 75hz for a CRT? I don't even know of any CRTs that have DVI connectors.
DVI-I carries both analog and digital signals, so connection to a CRT is easily done with an adapter.
The reason for vsynced 75Hz is for smooth scrolling with much less flicker than 50Hz, especially when using more recently produced (short phosphor persistence) CRTs.
Even if you do get a CRT monitor with a DVI connector, it's still going to be an analog signal (though I guess coming from an Amiga it would be anyhow? Analog-digital-analog....)
The next Indivision will output both. This is good news for LCDs, as I found the internal ribbon cable of the first Indivision to degrade image quality somewhat, and many LCDs lack comprehensive adjustments for tweaking analog input to perfection. It also gives a greater shot at smooth scrolling, many LCDs handle 75Hz correctly (at least mine do).