i've crunched the numbers many times - it always comes out cheaper getting the UK free dining package at SSR or OKW rather than renting points since, at least up to now, DisneyUK discounts SSR and OKW for their free dining packages.
So i'd be very careful if i were you when making comparisons.
if you look for example at the David's DVC site - their calculator is based on rack rates - not on the discounted UK free dining package rates.
In august, we had 3 weeks in a two bedroom at SSR including free dining, for the rate that the calculator claims we would have to pay for only 2 weeks without dining.
So again, i'd be very careful if i were you in checking this.
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