I can understand having to pay extra for MPEG-2 support in a piece of software or hardware, as there are licensing issues with a third party, but you're Intel. This is your chip.
Not quite. Since AMD's 64 bit extensions to x86 became the de facto standard (over Intel's IA64 Itanium), Intel has had to licence x86-64 from AMD and is required to pay royalties. Yes, AMD has to pay royalties to Intel for x86 (and more) and they probably do some royalty-swap deals, but it's not quite as clear cut as "this is your chip".
But yeah, I agree this is a money-hungry cash grab and a dick move by Intel.