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.
The price really matters. If there is no price then there will be no trend. The price is the primary valuable thing to consider and trend is only a by product and comes in second. IF there will be no price there will be no buy and sell and there will be no market price trend. Its all bout the price, without the price and value bitcoin users will not be attracted to bitcoin like they do.
The value of a thing is measured by its price so naturally the price of bitcoins does matter, but on price the thing is measured differently in bitcoin as we also consider what dictate the price, with huge volume I would say that price is good as it is more stable.