Eyeinthesky
Are you sure that you're not over-simplifying the situation?
The stringent 'goal' related tasks of instrument flying make it significantly more demanding than VFR flying as does the extra considerations of weather and cockpit managment interms of prioritising tasks.
Don't get me wrong VFR can be really tough - especially around big control zones but you have the option of just avoiding them if you wish. Ultimately, a nice good weather, good autopilot IFR flight is great but an artficial horizon or vac pump failure on a rough/cloudy day will just increase workload way beyond any VFR flight.
I would encourage anybody to train for a full Instrument Rating because of the extra discpline it teaches but light aircraft IFR limitations (both technical and personal) must always be kept in mind.
By the way 'scud running' is not VFR.