I'm ok with the repair costs so far. I've had to do one full repair so far and it was about 50k. But that forces me to choose between "Do I do the more dangerous Act 3 for a higher chance of good loot, or do I farm Act 2 more easily?"
I'm still trying to figure out the best balance, I think it's good that we're making these decisions.
Going back and farming an earlier act with me is totally ok, because I can still get good drops. And to be quite honest, the drop rate of ilvl 63 pre-patch feels closer to Act 2's current drop rate than Act 3's current drop rate. So it's not like you're even losing anything.
For some reason people can't get over the fact that they have to go back a whole act. When what they should be saying is "I can farm substantially EASIER content with the SAME chance of getting ilvl 63 drops, and dying less". If you're playing the game right, you should be spending LESS on repairs than before and getting equally good drops