I haven't done the napkin math but I'm going to guess scrapping 500 jets would bankrupt the company (or at least trigger a too big to fail bailout).
If Boeing can't afford to scrap 500 jets, it probably can't afford to sell 500 jets at a 95% loss.
Nobody likes a cargo plane falling on them.
I already use sites like seatguru.com to work out the best seats on flights - I guess I'll now be checking to see if it is a boeing plane or not before booking.
Now if the 787 is grounded or loses ETOPS certification, that'll be a much bigger hit for the big US airlines.
4,500 orders (edit: potentially) cancelled, any thoughts what that would do to planned income?