You recoup the home charging infra expense over the life of the vehicle through lower fuel costs (electricity vs petrol), and that cost is high. I just had a Tesla high power wall charger installed in a condo building for someone, and for a 100A conduit run and conductors (~70 ft including punching through brick exterior wall and mounting conduit to a finished underground parking facility ceiling) to a sub panel from the meter pan, charger install in front of the parking spot, and 20A branch circuit for other loads off the sub panel, total cost was $6k (US Midwest). Utility and local gov incentives covered half of that, bringing the final bill to ~$3k.