Just looked back at some gold investment data and honestly, the numbers are pretty wild. If you had thrown $10K into gold two decades ago, you'd be sitting on almost $66K now. That's roughly 560% gain over 20 years, which is why buy gold keeps coming up in investment conversations.

The average annual return was around 9.47%, which honestly holds up pretty well against what most people are getting from stocks. I think more people should know why buy gold because it's consistently performed during uncertain times.

What's interesting is that gold prices don't move in a vacuum. According to financial analysis, the 10-year Treasury yield has the biggest influence on where gold goes. When real yields climb, gold tends to drop because people figure they'd rather earn income elsewhere. But when yields fall, gold becomes more attractive. It's basically opportunity cost working itself out.

That's actually why buy gold makes sense when the broader investment landscape is offering nothing. Gold doesn't pay dividends, which sounds bad until rates are super low. Then suddenly that lack of income stream doesn't matter as much, and holding physical gold or gold investments becomes more appealing.

Inflation, geopolitical stuff, central bank activity, the dollar's strength, supply and demand swings - all of these play a role too. But if you're asking why buy gold in today's environment, the Treasury yield relationship is probably the key thing to watch. When real yields are elevated, gold struggles. When they compress, gold tends to shine.