I need help pushing my mother to get her first smartphone ever.

Currently she is on Verizon and they are really screwing her with the prices. she has a crappy flip-phone and I am trying to push her to T-mobile and to get the nexus 4, what do you guys think I can say to her to really convince a user that does not know what she is missing to get a new phone. It is really hard to convince her because she has never texted in her life nor played mobile games or used an app. How do you convince a recluse from technology to make a 300 dollar leap.