StephieElise said: "And do you expect that that will change significantly if there are cast changes? Obviously I wouldn't be selling them for a profit, just enough to break even."
There are no non-premium seats available for this cast's run (assuming they leave in November), so there will still be demand no matter what.
When I am unsure if I can attend a show, though, I always try and get the best seats possible. Having sixth row, side orchestra aisle for a sold out show is always going to give you a better return than I'm in the back corner of the balcony.
Also, if you want to sell for face, don't use those sites. Just offer it here. trying to do the "right thing" on StubHub, etc., just means some other scalper will buy your cheap tickets, and immediately put them back up at a profit.