Tried one more time. I asked at the desk if they had D-550's and C-4000's in stock. The guy says they have 3 D-550's and 1 C-4000. So, I ask if it would be possible to buy all 4 of them and return the 3 D-550's (not intending to, just messing with them). The guy goes and gets the manager and I ask him the same thing. As I'm talking the first guy says, "Oh never mind, I looked again and we actually don't have a C-4000 in stock so it's a moot point".
Wow, it disappeared - funny how that can happen 🙂