Carlton and St Kilda are cellar dwellers though, while many feel Hawthorn are on the decline considering their lack of first round draft talent from the past decade.
North and Essendon have similar potential for success (with both just finishing outside the 8 last year), so I think the extra cash from North would have got him over the line if they wanted him.
North don't actually have that much young talent - they had one year down the bottom after topping up for several years. Their list demographic is a lot closer to Hawthorn's than Essendon's. Many of North's best players are 28+ going into next year. North has been up for most of the same time as Hawthorn, they just never reached the same heights.
Just looking at the ladder position doesn't tell you much. North, Port Adelaide, Essendon and Adelaide all finished very close on the ladder, doesn't mean they have the same lists/prospects.