For $160 I don't see it being a problem for an assembled piece.
For instance, the JROK encoder outputs component, s-video and composite - standard resolution. Great, but not sufficient for all applications because not ALL of us are using CRT's - or have non-CRT's that even accept the MVS sync signal at standard resolution (thankfully my Panasonic Viera Plasma does). JROK is what, $80 + shipping basically and it doesn't take much to assemble one.
However, your approach has taken the MVS (and now CPS2) MUCH much further in allowing us to output the *correct* Sync AND 480p output for Modern LED's/LCD's, etc.. This specific breakthrough is worth EVERY penny of $160 assembled and programmed.
Hopefully down the road, we'll have a lagless RGB to VGA converter with options to adjust Sync - compared to the "meh" Gonbes converter! When that time comes, I'm willing to put down double this. All it takes is somebody, with the know-how, to put in the effort for a project like this - and that's exactly where the value comes from - effort