needle and seat

I stripped down My set of Mikuni plastic top carbs off my KZ750-p1 today and have found that the needles are worn, is it a done thing to just re-use the brass seats and just replace the needles? The seats dont look like there is any wear on them and i have seen the needles advertised on their own as a set.

Thanks

Jay

Even though the needles are steel and the seats are brass, the needles tend to wear much more quickly. Just replace the needles.

Why not just replace them both so they are matched?
They shouldn't be that expensive