1BR villas take almost twice as many points as a studio but Disney cash rates for studios vs. 1BRs are not double. So the savings isn’t there when compared to getting a studio. However, the 2nd bathroom at Kidani, in-room w/d and the full kitchen can be worth the extra cost.
One thing to keep in mind is that Disney often rolls out steep discounts for summer (as much as 35% off rack rates for villas) but DVC point requirements are fixed and the brokers rarely discount their $/pt rates. July is one of the higher cost DVC seasons. You might want to get out a calculator and compare costs.
ETA: I just checked a random week in July 2019 at AKV- Kidani, 1BR with savanna view.
Rental thru David’s = $4896
Disney cash reservation with current summer discount = $4465