I bought a burner phone for my startup. Barely use it and it runs me $3/mo. When I do use it, it's phone calls only (and text but I don't use that). I use wifi when I'm at home or at work. (old SGS V)

It's really lead me to wonder why I have my two normal phones that run me ~$80/mo just to have access without wifi. (SGS VII and iPhone 8)