Yes this is a hard thing I guess.
Everyone has their own views on the subject of keeping things original.
For example me, well I can't stand when people put holes in cases to add reset or ROM change switches etc.
Yet others love to pimp their machines. They can't get enough switches, buttons, knobs, colour changes or overlays on their retro machine casing.
But for me I believe it's a piece of history and deserves to be kept original.
And I can appreciate your efforts in trying to keep the VoX side of things original sounding for the era.
But it's all really a matter of perspective.
SD cards for storage are way into the future for a Vectrex yet we are lucky and now have a way to use these.
I think it's a matter of looking at what it can offer the user as far as..
1. Helping to keep the platforms alive and enjoyed.
2. Enhancing the experience.
3. Costing, (addons need to be affordable).
A network interface would mean that Vectrex users could play games with each other across the globe.
Since we represent a very small niche group these days that's a big thing in favour of helping to keep the interest alive.
If we could get some 3D Imager headset kits on the go again too, that would be a killer combination.
Networked 3D Colour Vector games with speech anyone???!!! Yes please!
Ethernet options have been made now for the Commodore 64, Amiga, & Apple IIe. In each case it has been very positive and successful.
The two big things that seem to regenerate interest in retro computing and help keep these old platforms alive are storage & connectivity.
We have the storage sorted (SD cards) now it's only the connectivity left.
Maybe a simple way to address this could be just to make or use a serial to Ethernet module. And chain it on the second joystick port like with the VecVox?
My question there would be. Can devices co exist on this port? 2nd Joystick, VecVox, SLIP device?
And what sort of serial speed can be handled by the Vectrex on the 2nd joystick port?
As far as originality is concerned, we would only really be extending the original Idea someone had of networking Vectrex's via the 2nd joystick port anyhow.
.-.-.