Conrad Miami never had a great breakfast benefit anyway (I think it was a few bucks in the restaurant) so it's not like you're missing much. Looks like the property is currently about $300/night when it would normally be $500+ or sold out. If you're traveling for work just go get breakfast somewhere; may I recommend La Estacion Cafe across the street? Their breakfast offerings will keep you stuffed for about 6 hours, and be sure to try the arepas.