It is not expensive if you download everything in one month. They are probably be also available legally via torrents. Additionally if they aren't already avai

It is not expensive if you download everything in one month. They are probably be also available legally via torrents. Additionally if they aren't already available as torrents you can download them all, host them and sell access at a much cheaper rate and I am pretty sure you would come even quite quickly. If they are open source, this is legal.