But if it's a continuous development, the price increase is inevitable.
Not necessarily. A good example in Ripple. A large part of the XRP are still owned by the founders who are gradually selling them. If Ripple were fairly distributed, the current price would be much lower. Only 1/3 of Ripple coins are in free circulation. The current price is around $1.5. If all coins were in circulation, the fair price would have to be around $0.5, if not even lower.