It never occurred to me that electric versions would pose issues with simultaneous use. It was gas from day one with my parents, and I've only been through one electric dryer period since living on my own, which was when Dave and I got a place together and he had a nice late '70s black panel Kenmore set with electric dryer.
When we bought our first house in 1990, there was no 240v service to the garage laundry area, so it was back to gas. By that time we had a MOL '70s Maytag set, and the electric HOH dryer had never been a good performer. We got a nice used '70s DG806 HOH for the new place, and that turned out to be the best dryer I've ever had. It got a load of towels dried perfectly in half the time it took its electric predecessor, and at a far lower cost to operate.