Yeah, I'm also hoping for act 1B stuff to come out soon. I understand the need to fix the stuff that out there but I like to do another do another run and some new content would be nice.
I personally have no idea how the gaming industry works, but I do know a little about developing SW products. IMO fixing, without developing products, is not good business. I like to use the contractor analogy, you build a house, sell it, if you have to fix problems you are now doing work but not getting paid. SW is weird, in that there are always going to be bugs, and as a result need to find ways to deploy new content, and fix problems. I think MMOs recently have been so successful in that they have got really good with deploying new content, and fixing bugs. Don't know if it's possible but I would like to see new content created as well as bug fixing happening on an incremental time frame vs one big release.