I have no trouble with $50 for the Harrier if it has a full campaign attached.
While the LHA is nice, it’s not a Nimitz–only helos can be operated from it besides the Harrier (assuming we will never see a 35B). So while it’s a great target for Su-33s, without buying the Harrier the LHA would be of little use.
On the flip side, a Harrier without an LHA or similar appropriate carrier is only half the story.
We have the Kuz for the 33. Hornet needs a Nimitz. Harrier needs its own. Otherwise it’s seriously constrained.
PS just looked at the site again. While it’s consistent in saying the price is $50 now, it variably lists $60 and $70 as release prices, depending on the page.