Regardless of whether the refreshed Airs are 1 week or 5 weeks away. If you are absolutely set on purchasing an Air, why would you not wait?
If you're desperate because your current system is dead, then just buy an Air in store and return it before reaching the deadline in Apple's return policy. Otherwise, just try to be patient.
If you're desperate because your current system is dead, then just buy an Air in store and return it before reaching the deadline in Apple's return policy. Otherwise, just try to be patient.