Lots of good stuff in this thread. I'll add: introduce the tech into their lives yourself. Don't wait for them to call you and tell you they just bought a laptop at Bestbuy (just for example). Educate them, appeal to their already built in BS detectors. Pay attention and answer their technical support calls :) [also Apple store and Bestbuy are usually great customer service resources]

edit: if there are grandchildren around, get them involved in the project