If we take this thread to represent wider opinions then it's not really surprising that this problem hasn't been solved - we've gone from people saying that movies need a Spotify-like model on page 1 to suggesting that all music should be free, games are worth a maximum of £5, and new cinema releases should be available to stream at home for £20 a month by page 3. If you keep telling yourself that you will give up pirating content when it can meet those sorts of price / convenience points then you're going to be justifying it forever.
In reality the argument for why a large number of people pirate content is "because if I can get it for free, I will". And that's a totally valid argument, just don't pretend that you wouldn't find a reason to carry on doing it even if Netflix/Prime etc. started to meet the demands that you've laid out here.
I think you've misrepresented what people have said to suit your own argument.
Let's take games. Since the advent of Steam and competing services, this is what happens:
* Game is released at full RRP - typically these days £30 to £40. Early adopters buy immediately.
* Over the course of the next few months, the game decreases in cost to roughly half price.
* Roughly 18 months after release, the game is regularly found on special offer, often for as little as £5 (sometimes less!) This price point attracts a lot of "impulse buys" and interest from people who might not consider the game normally.
I, personally, do not buy games full price. So I wait for often over a year before buying. However every game I play I must buy, and the creator gets paid his cut.
Now the film model...
* Film released in cinema for £10 a seat. Runs for ??? months.
* After cinema run ends, film is for a time completely unavailable anywhere.
* Gets DVD/BluRay release. Prices normally start at £10 for DVD or ??? for BluRay (sorry I don't own one!).
* Limited online PPV rental window begins. Priced at £5 per viewing. Window open for ??? months.
* Film becomes unavailable to rent online.
* You can now only rent this film on disc, which means you must be signed up to Lovefilm By Post or similar service. Let's not forget that Blockbuster and most local brick/mortar outlets have long since closed.
* May or may not be added to subscription services like Netflix. If so, availability is limited to ??? months. Will likely be "exclusive" to one service, so good luck getting to see it unless you sub to them all.
* Several years later (depending on film) it gets a TV release. Free at the point of viewing, but obviously the channel has to pay to air it. Can be recorded and viewed as often as you like, for absolutely no charge whatsoever.
So there you have it.
With a game, you can trade getting it early with getting it cheap. The more you wait, the less you pay. You'll always have to pay something, however. You normally get 5+ hours of entertainment from any title. You can't re-sell online purchases, whether you intend to replay them or not (I don't).
With a film, the prices are set in stone (across all providers) and waiting will do nothing for you - unless you can wait *years*. You either pay £10 to see it in the cinema, or you pay £5 to watch it online. Or you pay £10+ to buy it. Or, years later, £0 to watch it on TV (and record it!).
So, I ask... Why should there be a limited availability for online rental? Why should an older film only be available online to buy? Why can I only rent older films on disc?
Why shouldn't I be able to wait X months and rent a film online, for a bit less than I would have paid on release? Maybe I'd give a few more films a chance that I wouldn't for £5, if a few months later I could rent them for £3.
Why are they still peddling SD rentals for £3.50? Madness!
As said, I currently don't rent any films. I certainly don't buy any on disc, and wouldn't at any price, because I don't want the clutter.
The question was asked: "how much would you buy a film for?" The answer is, I don't collect movies. I watch a film once. I read a book once. I do not want to build up a collection. It does not interest me. So the answer is nothing.