The screen room is not for everyone. I did not want one either. It came on unit I bought. We have spent over 20 days camping this season so far and used the screen room more than half of those days. You might be surprised by what it offers.
2015 A122S and 2011 Work and Play WR30
2005 F-150 SuperCrew, 5.4L, tow package, 3.73 axle
2011 F-350 SuperCrew, 6.7L, FX4, 4x4, DRW, tow package, 3.55 axle