I was looking at a yoghurt maker today it's £15. The sachets of yoghurt base are between £1.50 and £2.50 each. I thought once you'd made yoghurt once you kept a little bit and used it as the starter, but the naice lady in the shop said nope you use a sachet of this each time.
Is there much advantage to homemade yoghurt when a sachet of starter is the same price as a family sized pot? Is there more to it than price?