Lots of interesting responses to my original question here! Obviously, it was a purely theoretical question, since none of us believe the price will stabilize, and I'm sure it's not long before BTC is back over USD$5000.
But I find it interesting that a lot of people like to brag about how Bitcoin is this fantastic, decentralized currency of the future, yet to a lot of you who posted here that doesn't really seem to be an important factor at all - the main reason you are into Bitcoin is as an investment. Nothing wrong with that, BTW.
If the price of Bitcoin theoretically stabilized (at whatever value), it should make it a better currency, but not really an investment. If you're into Bitcoin for political or ideological reasons then the price stabilizing would not be an issue. Personally, if I knew for a fact that Bitcoin were going to be stable, I'd move most of my spare money into Bitcoin because of its decentralized and international nature and as a way of limiting my exposure to banks. Of course, I'd still have other money in investments (property, shares, other cryptos, etc), but my daily-use money and savings I'd happily put into Bitcoin. The only thing stopping me from doing it now is that, while Bitcoin may go huge amounts, it could also go the other way, so I'm not prepared to take that risk.