Some people enjoy crafting recipes and tasting the results, others simply enjoy the process of making beer. Some people are really into the equipment, automation, shiny stainless, and some people have been using the same old cooler for 10+ years. Some want to brew every style, some like to enter competitions, some like to brew one kind of beer over and over, some share, some hoard, we all have our reasons. Make what you want, drink what you like.
On a side note, I once knew a girl who was an excellent cook as long as she was following a recipe, but she could not look in her pantry and whip up something edible. For some people that takes knowledge and experience, others just don't think that way and can never get there. She still liked to cook though.