I’ve fallen victim to the flashing red lights of doom. 
Yes, Virginia, my Xbox 360 has died.  And let me just say requiring $129
to fix a known manufacturing issue after 90 days is a total rip.  However
I have my stick it to Microsoft card in the form of a 1 year service plan
purchased with my Xbox.  So I’m off to find a service center and
renew my service contract!