Yea, if you see my above link, Costco was a big help to us. They have a lot of good deals.
My local Costco has them at $139/ea for the 4TB externals right now. I wonder if they have some sort of dynamic/regional pricing that causes the price to go up in the Bay Area.
That may be the case. It certainly would make sense to me since I imagine demand for denser storage is higher in Silicon Valley.
And I wonder if that happened automatically in their yield-management software, perhaps triggered by sales data showing that Bay Area stored got completely cleaned out on a regular basis? :-)