Considering that it will create to VOB and other authoring exts, why not add authoring and menu creation to it, that would make it complete end to end and I would pay for that kind of setup.

I use DVD Flick and FAVC, AVStoDVD and others converters, then run it thru Shrink DVD and burn with a number of different burners. So making this a complete system and many people who are interested in a a one click system would likely pay for the upgrades. I already use a number of Aiseesoft tools, heck if you go that far include a burner or a hook to a burner.