To the OP:
I have worked more than my share of Broadway flops (as well as long-running hits). I understand the emotions involved- at first you think that this gig might last years, you put in 80+ hour weeks of tech, then you start previews and your trusted friends who've seen it tell you in no uncertain terms that it stinks, and you realize that they're right. But the camaraderie that develops in a company takes over and you begin to get very defensive about 'your' show. How dare anyone criticize the hard work the company has put into it?
But as the saying goes, this is Show BUSINESS, not Show FUN.
I also have wished that shows would close- even ones I was employed by! Why? Because they were no damn good- or they were once good, but bad casting/upkeep has made them a pale imitation of the original, and even though some in the sparse audiences may leap to their feet at the curtain calls, how do you know that it isn't meant as irony or pity (or most often, people stand because someone in front of them is standing and they can't see)? I don't want paying crowds to see shows that are so bad that it will stop them from buying a ticket to the next show to open- and I don't want to see that cringe on people's faces when I tell them where I'm working. Theater is ephemeral (or it SHOULD be, ahem POTO) and NO show should run forever. Yes, even those that pay my bills.
I have also been part of shows that I (and my trusted friends) have loved- but the critics didn't. It's truly heartbreaking to listen to audiences that were obviously with us during previews suddenly become quiet the day after opening because they were told 'it wasn't good' -and anyone who says that no one outside the biz reads the reviews (or hears about them) is wrong.
As for the posters on this board, it's quite obvious that some are knowledgeable, and some are uncredited jerks only here to stir the pot. You must take every comment with a grain of salt- even those that agree with you. If you can't do that, you have no business in this business. I get the feeling from your post that you haven't been working Broadway very long (or you would be immune to this by now). Recently I saw a bootleg video of an entire show I worked that flopped- and until I saw it from the audience's perspective, I had no idea just how ridiculous and terrible it really was. When you're too close to a property, you can't objectively judge it. Years from now when you tell stories about your experinces in the theater, what do you think people will want to hear about? Here's a clue: it isn't the hits. So enjoy the last week with your company and know that you were part of something that only a few people can truly know and understand.
"What- and quit show business?" - the guy shoveling elephant shit at the circus.