Kitchens cost lots of $$$$$$$! I built a home 2 years ago, and for what I paid for my kitchen, I could have purchased a german luxury car!
How many points are you looking to purchase? If under 100, then it would be less than the kitchen? Right? Also, what will the extra points allow you to do? Another day, week, vacation? Also, how old are your children (if any or planning)? Also, do you have the funds currently to redo the kitchen the way you want? Would you have to finance (either one). If so, is it tax deductable? (Here's a biggie: How long do you see yourself in this home?) I sound like your mother-in-law, but all these factors weigh in to the decision.
If the cost is of equal value, the kitchen is the way to go.
Or both, instead of granite, go formica and buy points with the savings!
Post your decision when you have made it..........