Misreading?
Reading all the comments it seems that some people just read "it makes your phone download data quicker". These aren't just for using the internet on your phone, for people like me they are for actually making phone calls to start with and when you have lived for a year struggling to get a signal in your house and then when you leave the house you get phone calls from people stating they have been trying to contact you for hours, then you realise why some people actually need these not just want them.