The US dollar was a hyper roller coaster ride in the 1980's. Ran way up in value from 1980 to 1986 and then collapsed. Probably best not to judge gold with dollars in that period. Gold had run up in value and then the price came down when the US dollar when on its hyper roller coaster ride. When the dollar later collapsed around 1986, gold partially recovered, but the loss in dollars from the roller coaster was a done deal by 1986. Gold in dollars was fairly stable between 1988 and 2000.
Why, because it's disadvantageous to those who are encouraging people to buy gold? It's just as real as judging gold by the weak currency that preceded it.
Look, it's a safe haven, I don't dispute that. I own precious metals myself, but I'm not going to get so caught up in the matter that I lose my *** when it inevitably starts back down again, as it has again and again. It's bought during times of economic upheaval and sold in times of prosperity. That's the driver of the currency strengthening as well. It does not serve any argument about a looming hyperinflation.
We have not even come anywhere near hyperinflation, ever, in the history of this country, unless you want to delve into the very uncertain currencies present during the Revolution (have an ancestor whose Rev. pension application details his trials when his pay in Continental money had depreciated to worthlessness) or during the latter stages of the Civil War with Confederate money doing likewise (ancestors who lived through and endured that as well).
If you want to buy and hold gold by all means do so. I've told you that it's not an historically good thing to buy and hold long term, and even your own graphs show you that. But, it's your money. Have at it. Me, I'll hold it until the trend is clearly downward, I bought in early enough to afford that luxury and still have a very nice return. Certainly didn't get in at $250 or whatever as so many here brag, more like twice that in the wake of 9/11. It's been good to me but it's delusion to think it always will be.