so you can't even remember when you bought it or how much you paid for it.. are you even sure you bought 1oz? I mean, get you should probably get your facts very straight before posting something like that.
Yeah... 2008, low gold price in USD was $692, high was $1023.
If you bought for $1800, it was probably a "Regan Signature Series Proof Edition Value Guaranteed" or something similar that the various gold peddlers keep trying to push, promising they'll buy back at higher prices in the future, that have nothing to do with the actual price of gold. An ounce at spot should have been around $800 for most of the year - I was in grad school and recall hearing ads for it on the 2AM radio coming back from the research park. Would have been nice, I think that would be around 7% annual returns for the past 12 years or so, pretty low risk. I was busy trying to figure out where ramen money was coming from and hypermiling a $150 car, so wasn't really in the cards.
The Bitcoin Genesis Block includes the phrase, "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks" - which was a newspaper headline on that date, and it was a long while before you could actually do anything with the stuff other than trade valueless representations back and forth.
It could have been 2011, in which gold did peak over $1800 before falling rather substantially, but Bitcoin was around $1-$15 during that timeframe, not $100.
So, the claim is either deliberately false trying to prove how gold isn't a good investment with false numbers, or is a misrecollection of having gotten totally screwed over by someone selling sucker coins for 2-3x spot. I don't feel like looking for $100 BTC and $1800 gold, but maybe they crossed there together at some point...