I remember seeing a thread around here on general information about onboard upgrades. I don't recall it answering my specific information. So here goes.
I will be traveling business class from Eugene to Sacramento. I went with business class because it was just a bit too much to go with a roomette since I will also be taking the CZ and the CL all the way to Pittsburgh.
I will be traveling beginning of July. What are the chances of getting a roomette upgrade during that time of year on the Starlight? Assuming a roomette is available, will there be a significant savings over pre-booking?