I just worked it out, it's going to take about 2 hours for me to get enough wood to up grade the lumbar a level. Why would I want to "play" a game when it just requires me to have a window open in the background while I'm doing other things. I don't really count that as game play. Also, if you want a realistic generalisation, no one is on here saying what an amazing thing you've created where you have to wait hours for resources to be able to upgrade the stations the resources come from to be able to get more resources. Maybe if you got more resources by playing older levels it would be more fun, seeing as the game play is really in the conquests.