I doubt this purchase made any impact on BTC value.
Roughly $110,000 at today's value. I hope that was a tasty pizza.
That is like saying "Grandpa your an idiot for spending a dollar cause now that could be worth $500 (I am making up numbers for the example)" You have to think, that a year in time, is a long time in the bitcoin economy. Just like 70 years is a long time to hold on to money now.
Gold would be about US$32/Troy Ounce around mid fifties. I think the free market rate for it now is something like US$1.5k...big bump, to be fair. By the way Gweedo, are you familiar with Expression Engine? My team has projects that overflow from time to time, would be good to check out your work, get a quote, maybe do biz in BtC.