Today I spent about 1.8 million in upgrades. It dropped my health by about 13k, but my resistance went up by about 300ish and my DPS went up a bit as well.
The problem is that Act 2 is still a pain in the ass. Namely, damage reflect mobs. They dont want us to Zerg rush mobs to death, then they have an affix that doesnt allow you to kill it without dying unless you have an insane amount of life on hit.
Good job Blizzard. It also seems like at least 50 percent of all mobs have this affix since the new patch came out. Sure, they make them hit less hard, but does that matter when you are hitting yourself in the face essentially?
Why are you hitting yourself? Why are you hitting yourself? Because Blizzard made me do it.