I rarely PLAY this game anymore. When I do, I farm A2 goblins on my 250MF Demon Hunter. I can go hours without getting anything worth more than 500k.
Usually before that point I get bored and assume that maybe goblins arent better than farming and I go back and get 5 stacks and clear all of Act 1, every single waypoint I can find. 2hours later I have no good drops to show from that either and I just conclude that RNG wins again. Yesterday I got a revenant bow with 250dex, 200vitality, 59crit damage, 850 LOH in Act 1 NV farming. It rolled all those good stats but it did not roll +%dmg so it had 750dps, no socket, so it was shit. Rage quit.
My best drop that sold on RMAH came from A2 goblins. 40MF amulet with 9%iAS and 200dex, 40resist all, 40phys resist.
Usually after about 15 goblin reloads of shit drops I restart computer back into Windows mode (I play in Mac mode on a bootcamped Mac) and turn the bot back on and go do something that doesnt make me want to beat my head against the wall.