I've noticed that Amazon really has been relying on USPS more at least for my area (West Austin). I have Amazon Prime, and of the last 10 items I've ordered with 2 day shipping (and even overnight shipping), 9 of the 10 have come via USPS. I would prefer if they would come via UPS or Fedex as the item comes right to my door as opposed to me having to find the time to make it to my apartment's main office during their business hours (they close at 6pm), to retrieve my package.