Well back then the price was around nothing in 2008-2009 and 2010 was the start with 0.10 . But now price is 12.7K , how ?

Because bitcoin was the first cryptocurrency ever used by mankind. A year back the price drop drastically around 2-3K dollar in price.
It means back in that previous year the price was bearish . Now the bitcoin price is bullish it means the prices are rocking and perfoming very well.
In other word it's a "rise and fall" type of crypto empire.