First of all @stuntsworks, I'm really sorry to hear that you lost such an important person in your life. It sounds like he was one terrific father and a human being. You bring up an excellent point man. It is still a debate and an ongoing discussion.
Here's an excerpt from the same article explaining anti-ageing enthusiasts reasoning:
anti-ageing enthusiasts argue that as our perspectives change and science and technology advance exponentially, new solutions will emerge. Space colonization, for example, along with dramatically improved resource management, could resolve the concerns associated with long life. They reason that if the Universe goes on seemingly forever—much of it presumably unused—why not populate it?