GameStop.com has PC/Steam digital download codes for Rise of the Tomb Raider deeply discounted. It hasn't even been a full month since the PC version was released (Jan 28)!
Standard game $17.99 (reg $59.99)
Deluxe Edition $31.49 (reg $89.99; build your own deluxe for cheaper...)
Season Pass $8.99 (reg $29.99)
If you do the math, buying the standard game and season pass separately comes out cheaper than buying the Deluxe Edition ($26.98 vs $31.49).
I'm preeeeety sure the Deluxe Edition doesn't have anything exclusive to it you wouldn't get if you go this route, but please correct me if I'm wrong. The Steam DLC page shows me as owning all available DLC after registering my two codes.