Your prediction didn't happen yet desirable EV 's will not drop 7500 they might be special finance rates and home chargers or public charging comps. As to real live data / history I drove a plug in phev for 3 yrs 38 miles of pure electric 56 combined learned to love it now in a full EV with 300 plus miles of range I will exceed that mileage twice a year on my trek to Florida from New Jersey yes 2 hrs added charge time but no wife she is flying just me and Fido so the EV is already paying off in my history book !!