Why on earth would you organize a MotoGP race in what is effectively the middle of nowhere? The answer is as simple as it is obvious: money. Dorna are being well paid by the circuit to bring the three Grand Prix classes to the little town of Termas de Rio Hondo in the heart of the Argentinian pampas.
And in case you should start to rail against Dorna’s greed, it is fair to point out that a significant part of that money will also go to the teams, to pay transport costs and to cover at least part of their annual budget. Some of that money, but not all.
A more relevant question might be why would a circuit in the middle of nowhere pay Dorna a massive amount of money to come race there? If it’s in the middle of nowhere, then surely they are unlikely to make back at the gate what they paid to Dorna to organize the race? They won’t, but that is not necessarily the point.
The circuit, after all, is not paying most of the fee. The vast majority of the cash (indeed, probably all of it) is being paid by the regional authorities, with help from the central government. The regional tourism promotion council is counting on the increased profile of the Santiago del Estero province attracting more visitors to the region, and to Argentina in general.
In essence, the Argentinian government and the Santiago del Estero province are making the same gamble as the province of Aragon did for the circuit at Alcañiz. They hope that by raising the visibility of the area to the outside world, more people will choose to visit, and that will being more revenue to the region and boost the local economy.