>>read the fucking Mythical Man Month and realize that the death march is an idiotic way to do things which doesn't really work.
I disagree. The death march model works just fine -- *IF* you have a sufficiently large pool of new developers to replace the old ones dropping off along the way and *IF* your focus is short-term wins over long-term strategy. To wit: the entire video game industry (layoffs after a release, anyone?), the endless employee churn at all the major offshoring companies, "captive" on-site employees via H1b Visas, etc. This is just an extension of what is common outside the IT industry with low-paying service jobs.
If the only metric is cost, or if cost is valued sufficiently higher than quality (not uncommon), then it's all the more obvious.