Inter has 17m fans across Italy, as opposed to Roma's miserable 4-5m, which means that for the time being Inter will earn more money from television rights (number of fans across peninsula is the most important determinant), which is by far the most important revenue stream for Italian clubs; its share is +50% in total revenues for most clubs. Needless to say that exposure to risk is also significant one due to this over-reliance. Worldwide Roma is insignificant, always has been and them coming from capital makes no difference, at least not in their favor. Inter has pedigree of being an international club and plenty of foreigners can relate to them. The region of Lazio has never been particularly fond of foreigners, and it goes that far that dislike is felt towards their countrymen, one of the reasons why Roma isn't popular across the country. You won't find too many of Roma supporters in other regions of Italy. Majority of their fans are located in the Lazio region, while Juve, Milan and Inter have great number of fans across Italy. Inter while being at its bottom, without CL football, still earns more than Roma (according to the last year's FR), has higher viewing figures and attract around the similar crowd to the stands. Milan club has potential to earn 250-300m, while Roma even with a brand new stadium, consistently fighting for the highest honours might earn 200m or thereabout (Nike being Roma's 2nd most lucrative sponsor pays them 5m annually, dat commercial income

). Perfect scenario for Italian football and the one that would bring the most money from abroad would be Juve, Milan and Inter finding their place among the top 3 teams each years. These teams have the greatest number of supporters (home and abroad), are extremely marketable and have illustrious history. Compared to them Roma, Fiorentina, Lazio and Napoli are irrelevant scrubs.