What actually matter is not the actual price, it's the trend.
If the price is stable or rising, the adoption increases. People and businesses get more confident in bitcoin and start using it. More miners start up their gears.
If the price is falling, people get scared / suspicious and will go away from bitcoin.
for me the bitcoin price keeps going up because it will be good for me. if bitcoin prices increase, bitcoin users will also get more and more because they are motivated with very expensive bitcoin prices.