WiFi is not exactly ubiquitous and it requires an infrastrucutre which is short range by definition. It's also power hungry. If your use case is to place severa

WiFi is not exactly ubiquitous and it requires an infrastrucutre which is short range by definition. It's also power hungry. If your use case is to place several sensors in a vineyard without having to replace batteries every day you want something like sigfox. Your arguments works if you're a hobbyist hacking together a diy solution (i.e. you value your time 0 dollars) but if you're a company or a more professional user you might value the fact that this works out of the box, is well supported and manufactured to last in the field.