Well, I have always maintained that Demo results prove nothing, except that perhaps the vendor is not trusting enough of their product to actually commit real money to it (which should raise a red flag to any potential buyer not to purchase this). Demo results are a waste of time - they don't serve a purpose since they will always be 'fake' as opposed to 'real' accounts.

Testing settings is a waste, since the results will differ between Demo and Real. Demo is for people who don't want to get their feet wet (just dip a toe in the water).