I'm trying to buy a T-Mobile 128 GB 6 Plus online at the Apple Store for Personal Pickup. I'm fully aware of how quickly they disappear once they show up in the local stores' inventory, but I still think that Apple's algorithm for determining availability is a little flawed. Yesterday a bunch of inventory started showing up at many of the Apple Stores in the Bay Area. I went through the process of trying to order my phone online. I would pick one of the local stores that showed "Available today", and by the time I hit the purchase button, I got the "Error occurred/Please try again later" message. No surprise, but when I went back to the Availability choices, all the stores that showed as having availability (minus the store from which I attempted my purchase) STILL showed them as available, and there's NO WAY that they would all still be available in the time it took me to attempt to make my purchase. Even so, I tried to purchase my phone from each of the other so-called "Available today" sites, and, as expected failed each time. Come on, Apple. Stop wasting my time!