I have made some of my own nut butters and pecan honey butter is really good. The honey adds some extra sweetness and when you put this on a warm roll from the oven, you feel like you are eating a dessert.
Using spices like ginger and allspice also add just the right amount of flavoring. I don't think the pecans alone would make a very good tasting butter.
I like to make pecan butter for special holiday dinners. It doesn't seem to matter how much I make, there is never any left over as it tastes much better than plain butter.