When Ike haxton was sponsored few years back, it was around 300-400k per year, which some of it must be used for buyins into tournaments i belive, but there is difference also in pokerstars pro and pokerstars embassaador like jaime staples was for example, so not many of them actually were getting that amount, but they probably lowered it alot aswell since tons of pros left stars and are working with other sites now, stars is really greedy so yeah doesnt suprise me either