Steamline Luggage

I can't remember who I am supposed to be blaming for this obsession...one of my blog friends who very recently purchased a Yellow Bag from the Editor Series {middle image} from Steamline Luggage.  Now, I have seen these before, and very intentionally ignored their amazingness.  But now those Yellow Aviator Bags {left image}are screaming my name.  Normally I would not listen due to their price tag, but right now they are 40% off.  Unfortunately only the three smaller sizes are available, and although they are a great deal I can't decide if the larger of the three {the Overnighter} would be a useful size or not....dilema, dilema...