Part is lower profit margins. Part is total cost of ownership. Part is recharging them. If I don’t have a charging station at my place of residence, I have to drive somewhere find an open charging station and spend time waiting for it to charge. There are fast charging stations but they cost more (total cost of ownership) and they still aren’t as fast as filling a gas tank (time is money). Depending on where the charging station is, I might be stuck there just waiting for it recharge.