Gold has already been taken out by bitcoin, though it's been a gradual process--and I'm talking about the increase in value over time for the past 10 years or so (since bitcoin was introduced).  Gold had an amazing run-up to the top in 2011, but ever since then it's been kind of stale.  And if you compare gold to bitcoin, it's way more than stale. 

But if you like your gold coins like you say you do, why not hold onto them?  Buying bitcoin when it's at its all-time high has led a lot of people to lose a lot of money in the past, so that might not be the smartest move right now.  Having said that, I do think bitcoin is going to go higher still, but that's just my unsupported opinion and I could be dead wrong. 

And if you need a safe haven for your money, gold is the way to go, not bitcoin--plus right now the state of the economy is shaky at best, and you might need that safety that gold provides rather than the volatility that bitcoin is notorious for.  But it's up to you; I fully understand the bitcoin fever that's been infecting everyone this year.  Good luck!