at time I am writing this reply, the bitcoin price is $16,760.90.. It has also a bright future and I believe will still going to go higher because of the fact that bitcoin is a scars resource - it can only be up to 21 million bitcoins in total.
Who says it could be more than 21 million bitcoin? I don't say that for sure. Check my reply once again and try to comprehend more - what I was trying to point out was that bitcoin has a bright future and its price, from $16,760.90 from the time of that writing, will go even higher due to the fact that it is a scarce resource and I specifically said that the reason why it is a scarce resource is because it can only be up to 21 million bitcoins.
As for the price of now, I am personally totally satisfied with it, earlier on this thread I predicted that it would not overtake 10k before second semester of 2018, glad I was wrong. Lots of manipulation though, it seems.
About the quantity, indeed, since it is limited the Bitcoin's price is not subject to inflation, it is actually deflationary by nature. Let's just hope people still care about Bitcoin when other cryptos right now are proving to be very convenient to use.
Yes, it is a US dollar during that time of the post at 11th of December 2017 the price when I search on google at that very moment was $16,760.90. I do some searching and found this analysis way back to that date: http://www.newsbtc.com/2017/12/08/bitcoin-analysis-december-11-2017.
Bitcoin as the major base in trading with other cryptocurrencies makes it really the best among all altcoins and it should be because it is the pioneer of the cryptocurrency concept if I am not mistaken.