I've been waiting on the right deal on a generator and when I was at Costco today I saw that they have the Generac XT8000EFI generator on clearance for $699.97. It has very good reviews and great power for the price. I believe the regular price was $1000.
It is in-store only and since it is a clearance price it may be YMMV. I bought mine in the Seattle area and they had several available. Located with the other generators.
Here is a link [generac.com]
to Generac's product page, for reference only.
Costco item number 1239461