Buy. I do want to make it some day. Some people in my congregation make great challah! One man in particular made some a couple weeks ago and it was ... *chef's kiss* sooooo good!
I make it. Most times I do it in the bread machine which makes it so much easier. For holidays I will use the dough cycle and then take it out and braid it. My husband would eat a loaf a day if I let him.