Ask HN: Invest in Sailfish OS?

Currently I'm searching for a new smartphone. And at the moment there are 4 OSes left: Android, iOS, Windows and Blackberry.

A lot of app makers are dropping support for Windows, and Blackberry is already putting Android on devices, so there are only two real options left.

But I have been following Sailfish for some years and to me it looks very promissing. Later this month Sony will add support for (all?) Xperia devices and Russia and China are also busy developing for Sailfish OS.

So I got the feeling Sailfish could become the third option in the near future.

What do you think? Could Sailfish be worth investing in?