I mean no offense by this but it sounds as though androidluvr2 needs to separate thier needs/desires from thier mother's.
Even with her at 75 I have no problem IF androidluvr2 tells their mother "If you get an iPad, I can not provide support/education/training for it, If you buy an Android I can". However to try and force their mother's choice based on their personal desire to play with a device strikes me as selfish.
I personally prefer Android over iOS, primarily because I dont care for walled gardens. My parents live far from me So I am NOT able to provide support in a timely manner. That combined with the number of their friends using iOS made iPad the right choice for them[They are Deaf so Facetime providing a visual form of communication before android makes a difference]. My wife would prefer a simpler interface for her phone, so in theroy iOS would be better, but she would also prioritize a physical keyboard over the interface so she has an Android. My son wants an iPhone [when he is old enough for a phone] because some of his Classmates already have them, this I will take a stronger stance on becuase I want him to learn to evaluate technology based on HIS needs not blindly follow his friends decisions. Oddly enough he was all set to buy a Nexus 7 with his own money until a Nintendo Rep told us the next Pokemon game would be 3DS exclusive so he decided to save for that instead. I share all this to demonstrate that blindly forcing my prefrences on thosu around me would be wrong because it doesn't take into account their needs.
androidluvr2, reevaluate things from the perspective of your motehr's needs and desires, then present her with the facts. then let her make the decision.