Would depend on you mate. If you wanted to get all his RCs graded, then yeah, it'd be worth it. If you think that card is in great condition, and you feel the best way to keep it that way is to have it slabbed, then yeah get it graded.
If you wanted to get it graded to sell hoping to get a bit beter value for it, then probably not worth grading it.
If it was a Gold Refractor, perhaps it'd be worth it.
All comes down to what you plan to do with it.