I want to get my own blog network up but I have been told that to keep up or increase the PR, DA/PA, it will cost me alot each month in services. To the point that it wont even make it worth my while. What are people doing to keep up there network on the up and up? GSA?. Like I dont want to spend a bunch of money on high PR sites only to get them destroyed down the line. What can you expect to spend monthly on each domain you have?