I think it's a regional thing. Every house I have owned came with the washer, dryer, fridge and stove. Even after I substantially upgraded the stoves in my first two houses, I left them there when I moved. Those houses were built in the 1950's and 1980's. Only my current house, built in the early 2000's came with a microwave.

OTOH, I'm told it's common in other parts of the country (I'm in the upper Midwest) to take major appliances when you move.