Just as a note for people wondering:
As best as we can tell, the GOTY edition will include SecuROM w/ Activation limits due to the first 2 DLC packs. See the previous discussion
from the last time the game went on sale.
If you want to avoid the SecuROM activation limits, you'll need to buy the base game, and only the 3rd and 4th DLCs.
Intel i7 4790k @ stock, Asus Z97-PRO(Wi-Fi ac), 2x8GB Crucial DDR3 1600MHz, EVGA GTX 760
Samsung 950 Pro 512GB + 2TB Western Digital Black
Dell 2408WFP and Dell 2407WFP-HC for dual-24" goodness
Windows 10 64-bit