[Woden501]

+1 to your third point especially. I'll even add that Agile development can be a big bonus in any market that has the potential for rapidly changing needs. Even if you don't lose out to your faster competition you may still end up releasing to a market that's no longer looking for the solution that you "perfected". Agile development allowing you to release a functional product as soon as possible, and adding to it as resources allow means you can pivot your development to meet new demands instead of bogging yourself down trying to produce the perfect solution to a problem that continues to evolve.