I am not personally familiar with either of the 2 brands, but by reputation, I believe the Starcraft is in a lower price/quality class than the Airstream. However, if you have looked the Starcraft over and like it, then go for it. What you like is what counts.
2016 Tiffin 40 QBH
2015 38RSSA, traded
2005 TK3 #1869, 10 yrs of memories,
2017 F450 KR--one more Ford is it
2009 F450 4x4-died; 2010 F450-retired