Inter have earned around €7m from their first three home games of the season, as crowds pack out San Siro.
The Nerazzurri have taken on Torino, Parma and Tottenham Hotspur at home so far this season, getting an average attendance of 57,529 in the two Serie A games.
Against Spurs on Tuesday a crowd of 64,123 witnessed a 2-1 win, and Gazzetta dello Sport reports that the club has earned around €7m from match day revenue for those three games.
Around half of that came from the Champions League clash, underlining why the Beneamata want to stay at San Siro at all costs.
Milan could look to construct their own stadium, while Inter want to buy the Stadio Giuseppe Meazza outright from the city council.