According to my current understanding, Bitcoin will always tend to increase its value because of being deflationary. But when BTC finally stabilizes and functions like other rare resources, such as gold, will its price be higher or lower than the current (around $250)?
"There is a common fallacy which says that price stability is required in order for a currency to function as a form of money. The way people use terms like store of value and unit of account presumes stability. However, I will show that in an unstable world, a stable currency is counterproductive and furthermore that serves the traditional purposes of money, to the extent that they can be meaningfully defined in unstable conditions.
First of all, it is impossible, long-term, to expect an algorithm to maintain the stability of a currency. There will always be money to be made by predicting the algorithm’s future effect on supply, and once people have learned to do so then the algorithm necessarily ceases to achieve its desired results. For someone who gains by anticipating such an algorithm is not producing something valuable that other people want to buy, so he must be gaining off of other investors, who are losing. That means other people holding the currency, which means that the currency cannot possibly be stable—either it is dropping in price, or the supply is rapidly declining. (The outcome would depend on the details of the prescription.) This can continue until the market cap of the currency goes to zero. In order to succeed at manipulating the price to keep it stable, the prescription must never allow traders to adapt to it, and this means it must continually be smarter than everyone else. This is not something anyone can reliably guarantee, especially a Bitcoin startup, if history is any guide. This is the same reason that attempts to create crypto-equities that track the price of gold or dollars and other things through protocols like ProtoShares and Mastercoin won’t work. It is also why the federal reserve is traditionally so secretive, why the chairman tries to talk without saying anything, and why his or her every move is so deeply scrutinized.
Stability is about as real as the fountain of youth, love potions, or perpetual motion machines. It is not to be found anywhere in the universe but for some reason people act as if such a thing could somehow exist. Prices reflect the availabilities of things that we actually can have, so maybe we should all stop searching for chimera of stability and accept that if the world is unstable, than prices ought to be unstable too. Otherwise prices could not serve the function of enabling people to coordinate the allocation of scarce resources."
Source:
http://nakamotoinstitute.org/mempool/bitcoin-as-a-store-of-value-unit-of-account-and-medium-of-exchange/