I would have to disagree on it being pointless. The point and aim is clearly to find objective truth, even though its highly unlikely that it will be attained. This does not make the aim useless, rather it serves a guide to a very interesting journey.
If Joe listens to good advice he'll cough up the extra bucks and buy a Mac.
Every year Santa comes down my chimney. There is no other excuse for the toys being there on Xmas morning. I speak here purely from the standpoint of a guy who likes toys and cannot be swayed by your technical crap disproving the existence of elves and flying deer.
I'd personally love to see the day when artists and developers stopped producing works based on the motivation of monetary reward. Imagine, people being creative just because they want to be. What a crazy unrealistic concept I've imagined here.