I don't for Winter/Summer. I find the bootie on your waders and the socks you wear make a bigger difference at keeping your feet warm than the boot.
I do use a different pair of boots based on the stream I'm fishing though. For bigger water, where I'm hiking less, in the water most of the day, and covering less ground, I wear heavier, sturdier wading boots. For small streams where I'm hiking out of the water as much, or more than I'm fishing, I wear a lighter more hiking oriented pair.