a) accessible and buyable by me (Linux, .nl based)
b) at least as easy to find and get as pirated material
I will immediately buy. In all other situations: I am not going to fiddle with drm-ripping python scripts, convertors, virtual-machines, geo-ip-faking-proxies and so on, just to be able to pay for stuff that I can get without all that hassle for free.
I even track down authors for books I like and wire them the money personally, if for some reason their publishers hide behind all this DRM nonsense.
You can't really do this so easily with books, but my favourite tactic with music is to rampantly pirate an artists output, then go up to them at a gig and press a wad of cash into their hand with an apologetic smile :)