The market is rather unhappy. E.g. Win10 doesn't ship an H265 codec because it's too expensive.
Very few Win10 users would want a CPU-targeted HEVC codec.
Intel, nVidia and AMD have that codec in their hardware. They are probably paying for a license to use these patents, they ship Win10 drivers for their hardware, and Microsoft publishes that drivers on Windows update.
$0.20 for MPEG-LA, $0.40 for HEVC Advance, and "call us" for Technicolor and Velos Media. $0.99 doesn't sound far off.