I felt the same way. My first love in consumer electronics was audio reproduction equipment. I had a bunch of very expensive (at the time of purchase) reel-to-reel tape recorders, amps, pre-amps, tuners, turntables, cartridges, receivers, equalizers, speakers - even 8-track and cassette players, then CD players, VHS and more - things I had replaced, but didn't get rid of because "I might use one day."
I am not going to call myself a "hoarder" but I was definitely hoarding that stuff and "one day" never came. All they ended up doing was take up room and collect dust. One thing nice about having a career in the military is you rarely ever stay in one place for very long. And the allowed weight limits during transfers don't allow you take your "hoards" with you.
It's not very pure at all. It can't be. As P4-630 noted, it is too soft.
I think it important to note that gold is NOT the best conductor. Gold is good, but not the best. Silver is, by far. Then copper. Then Gold. Why silver then copper? Because they have the more free electrons in their outer shells. But silver tarnishes very quickly as soon as exposed to oxygen. Copper tarnishes fairly quickly too. Gold does not and that is why gold is often used.
But being so soft, it would be scraped off the contacts after the first couple times the connector is inserted and removed. So they use gold alloys (typically tin) to make it much harder. 10K might even be generous.
I think it pretty obvious. It is rare. It is expensive smelt out of the ore. It is pretty and has many uses in industry and, yes, jewelry. Yes, there are elements more rare, and harder to extract. But again, gold has more desirable uses.
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It is rare - as a simple 
Where did I ever say it was "super" rare? I didn't! I even made a point of saying there are elements that are more rare. And I provided links as evidence to corroborate the facts. 
