On the pricing, I think there is also a time crunch issue. Arteta is buying two new starters here, so he will be desperate to get these deals relatively quickly so the raw boys can do all preseason training with the team and learn the system.
Contrast with Wenger who used time in the other direction. He loved brinksmanship, letting the clock countdown to zero to force a discount. So we got cheap players but we were also unprepared every season
