Why can't we build them nearer to the population centers with high energy demands, then? Why not build them on vacant land near big cities?

There is a lot of prime wind farms land on the hills east and southwest and northwest of the Bay Area. There is a lot of vacant land in the hills above Los Angeles. The Olympic peninsula and western slopes of the Cascades have plenty of room for wind farms to serve Seattle. Same on the east coast: Cape Cod actually had a proposed wind farm that was stopped by the moneyed interests that live there, but that could supply Boston with all the power they need.

What is the answer for not pursuing those areas?