They're basically leaving a lot of money on the table by not being able to fill orders faster. Yes, and in times past Boeing was leaving a lot of money on the

They're basically leaving a lot of money on the table by not being able to fill orders faster. Yes, and in times past Boeing was leaving a lot of money on the table by doing things in-house, employing a unionized workforce and applying more stringent quality control. Not everything is an opportunity for expansion, and aircraft manufacturing is famously capital-intensive and slow to build up. Airbus recently added another A321 assembly line -- by repurposing its idle A380 construction hangar. There's a cautionary tale for you, if you're aware of history.