My biggest problems with gold:
1) For many, gold is a hedge against governments and financial systems blowing up the economy. Hyperinflation, devaluation of assets, or even currency default. While governments and banks are extremely leveraged around the world and could be susceptible to a global financial meltdown, I find it unlikely gold will be the protection people expect. The largest owners of gold are governments, who would be forced to liquidate some or all of their holdings in such a case - which would have a massive effect on the price obviously. There is also precedent for governments (even in the US) seizing gold. The populace would likely be more inclined to accept a new currency (i.e. reboot the system) than to revert back to a gold standard.
2) Physical gold is hard to use for trade. It's hard to give someone an exact measurement of gold without using coins - and then you have to trust that the coin is authentic and that it is of a denomination small enough to use for trade. Not to mention many gold proponents do not own or use physical gold, but rely on gold securities or an idea of gold securities in an investment account (which doesn't protect against a lot of the end-of-the-world or financial system meltdown ideas those people like to talk about).
3) Gold is valuable because out ancestors liked it? I just never got why gold is worth anything beyond it's utility as a metal. I don't put weight in "it's just always been valuable". Things change. We already see gold has lost a lot of its luster (pardon the pun) with young people.
4) Gold is "scarce"? Supposedly, a lot of gold's value is that it is scarce. I would argue it's not that scarce at all. But even if we say it is, we don't control that scarcity. What happens if we find a huge supply tomorrow that doubles the available supply?
Bitcoin is a far better option for storing and transacting wealth than gold. And I would argue it's a much better hedge against government/financial system worries.