The argument of R* made uber amounts of $$$ on this game they can afford X,Y,Z is an invalid one.
As I've stated before this is a business and therefore they're there to make money not spend it. In order for X, Y, Z to be added they need to convince TTI and their shareholders the extra expense that X, Y, Z requires will be worth it. If they spend $300,000 to hire a voice actor or license a song or whatever they need to pass a charisma check to convince the shareholders that the feature(s) will sell enough copies/shart cards to make a profit to get that budget.
It's not about how much money they already made but what potential money will it help them make. Gta5 is now the most (legal) profitable entertainment piece (sans merchandising) exactly how much more potential profit margins can they milk?
Nobody is disputing the business model of the corporate entity of which R* is a component, but their's is hardly the only valid way of doing things. Plenty of game studios invest profits back into supporting and improving the game to a much higher degree than we see with GTAO, and there's nothing invalid about believing it can be a successful strategy and desiring the same treatment.
T2's strategy of providing bare minimum support for a product that succeeds because of it's strong foundation and in spite of the cynicism of its top tier management works at the moment because there's really no other game that offers quite what GTAO does. I'm sure this is the reason a lot of us long-timers are still here despite all the gripes we have. Sadly the best we can hope for is that a true contender will emerge offering a comparable experience with better support and force T2/R* to shape up or fall by the wayside.
One can dream...