That's irrelevant. Hes not legally entitled to it and thats fact. Not getting into a different discussion on morals in business.. You have to be advertised or marketed it to be sold it, i know, I've been in business 30 years. If they did take it away then there is nothing I could do. Personally I think that they should invest money forward. When do you stop maintaining old stuff? Are you going to have the same arguments next year and the year after etc. Are you going to maintain stuff for people who stop upgrading after every dlc? Are you still maintaining it in five years time for people who only ever bought vanilla?