Growth due to demise of the video store
I am a resent subscriber to Netflix streaming, I think there are two factors for me. First the dearth of older videos with the demise of local video stores and high cost of digital cable TV.
As others put it I hate Red box, one can forget about wanting to watch an older videos or niche genre like Anime using Red box and forget about finding a popular dvd or blu ray.
As for cable, I pay seven dollars a month for streaming vs $29 to $60 above my cable internet bill for tv.; do the math, which is cheaper.