That's even truer in a place like Buenos Aires with many potentially rebellious Spanish people than in a less-inhabited place like Entre Rios or the southern Pampas, even if the latter has many hostile Indians that need to be conquered. (The Indians are nomadic while the Spanish in/near a place like Buenos Aires have farms of their own already.) In less-inhabited places, after they're ready for British colonization (no matter how long it takes for the enemies to be subdued), that's where there's an opportunity for more equitable land ownership. Even IOTL, some parts of Entre Rios and Santa Fe had more equally distributed land. And just how exactly does the process of buying local support with large tracts of land work?