1975 -S/S PF rpm-001. Rosevelt

I know the price of this coin changes in grade, my question would be is it worth grading to try and achieve that grade and conserve it or would it be just fine in its flip as it sits. I picked up quite a few hole fillers from my lcs for my book today and was scopin em out and find this little guy
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Looking at grades/prices in the CPG... not sure it is worth the expense, even if you get 66...Cheers, RickO
Thanks for your opinion. Appreciate it