I remember when imgur started as well, it was born out of the same sentiment, but chose an unsustainable financial model (in my opinion). I think $5/yr strikes

I remember when imgur started as well, it was born out of the same sentiment, but chose an unsustainable financial model (in my opinion). I think $5/yr strikes a good balance between "an easy place to share some images" and "not expensive enough that the average person will have trouble paying".