I have been trying to cut a few corners in my family's cooking due to some unfortunate employment issues. I have been trying to replace some butter in baking with margarine. So far the results have been quite good - texture and flavor changes not detected by my family. However, when I went to the store, I found that some margarines are as expensive as store brand butter. Are there really differences between the name brands of margarine? They all say "good for baking".