I know some people exactly like this. I suspect in some cases it isn't about the technology but about admitting that we are right about something that they didn't figure out first.
I remember seeing a documentary years back which basically said that you should approach boys and girls exactly oppositely. In the case of boys, you might want to take a relaxed approach. Tell him the benefits, introduce him to the idea, but then back off when he resists. As long as you act as if you have given up trying to convince him, he may actually be nagging himself internally to give it a try. If he sees you having a lot of pride in your ever-improving success with your PV, he might just approach it with an open mind. Of course he'll come up with some reason that it was his bright idea in the end, but the result is the same right?