I picked up a full set for $170, but i think i bagged a very good deal....at $350 thats $5 per card....probably a touch over the odds but if the condition is very good then maybe it is worth it.
Remember that people will always pay a premium for a full set without the hassle of chasing down missing cards.
And by the way - i bet you all the tea in China that you will be chasing down this set and the 1965 Scanlens cricket set by the end of the year - no way you will be able to restrict your focus to 1981!
I should know - i tried and failed!