All of this is flawed from the start as we actually have no idea about how many copies were sold digitally.
Continuing to ignore the digital copies does not make any sense anymore and like Halo 5 proved already; they can be quite significant (on Xbox One and Play Station 4 as well).
So no, I do not think the 60$ price is related to any "desperation" at all... And I actually think the game did very well already and will do even better with the Play Station 4 release. And I'm pretty sure we will see another Tomb Raider soon based on the sales of this one already.







