Would you take this risk if it meant a big discount on your cruise?

you book a last minute cruise at a discounted Fair travel fly drive whatever to get all the way to the cruise port even board the cruise ship only to be told you don't have a room and you can't sail

it actually happened this week to a woman who was trying to sail on the Carnival Venia she got all the way to the cruise port even got on the cruise ship was told to wait until her State room was assigned

when you're booking a cruise if you don't want to run this risk you're not to book a TBA State room