What kind of sucker would pay $15 a month just for HBO?? Oh, wait a minute, iFans. They'll overpay for anything.
HBO is the only thing I watch beside ESPN because I hate commercials. $15/mo worth the price since it's already around the same price thru DTV or Dish. With SlingTV and HBO Now for $35/mo. I completely cut the damn cord. Yup.
Anyone who doesn't watch regular cable enough to justify the high price you pay for it. Or like my fiance and myself. Between the two of us, we probably watch about 12 different series. Plenty of movies, documentaries, stand-up comedy (I don't really watch too much of it, but there are some classics on there), and you can watch every episode of a ton of fantastic HBO shows that no longer air (Sopranos, the Wire, Six Feet Under, etc.).
Maybe I'm just excited because we have been paying $19/mth for HBO through our cable provider, and were very much looking forward to this because HBO is like, 90% of our cable-watching. I wouldn't consider myself an "ifan", but I did get an Apple TV for Christmas last year, and it's pretty awesome, so that actually works out quite well.