That's what goldbugs don't get. Gold is absolutely useless in the digital era. Who the hell wants to hold some stupid gold coins in 2017? I mean what is the point in any case? We live in a globalized world, a global economy, the internet is the biggest business, you can't think in local terms anymore, and bitcoin is the best way to make payments across the planet. Gold is only useful if you live in an isolated village with no internet and out of the civilization or something.
Gold might be useless in the digital era but it's been around way longer than Bitcoin has. I'm sure Gold will be around for a very long time. There are still tons of miners out there mining for gold. Who knows how much Gold there is to find.
Unlike with bitcoin, there's only a certain amount of Bitcoins to mine.