The maintenance gap is real but smaller than the hype suggests - you're looking at maybe 30-40% lower costs over time, mostly from skipping oil changes and getting those brake pads to last forever. What nobody talks about much: tire wear. EVs are heavier and have instant torque, so your tires degrade faster than on a comparable gas sedan, which eats into some of those savings.
The bigger unknown is what happens after 8-10 years with the battery and cooling systems - long-term data is still sparse enough that I'd honestly want to see your specific model's owner reviews before committing. Check what the dealer charges for coolant flushes or thermal management repairs, since that's where surprise costs can ambush you if something goes wrong outside warranty.