Well I spent $120 for D3 vanilla + $300 on RMAH + $80 RoS collectors edition + $80 Overwatch collectors edition (Mercer Wings) + $40 Starcraft 2 (wings and transmog) + +$15 necro pack + $15 S1 immortal season pass (i never finished, deleted the game when i hit level 35) + $100 for D4 ultimate edition (4 days head start, pay to win).
So $700 so far. I played the closed Beta. and im 50/50 with D4. It honestly feels like a isometric version of Kingdom of Amular in not a good way. So I might be out $100 on D4 and just play Resident Evil 4 remake till I get bored.