I tried to buy their black friday offer the very first second it came online, but was refused.
Repeatedly.
Like many others, I was on the Dell website constantly refreshing until the deal changed from "stay tuned" to "get this deal".
I hit the button, this would be the first second it was available, but Dell responded that the deal had expired.
I tried re-tried for 20 minutes, always getting the same response. Meanwhile the main black friday page started showing "only 450 left" of the tv. Later, the responses switched from "expired" to "sold out".
Dell customer support offers no explanations, just canned responses that the deal was very popular, though one agent admitted it did not sell out in one second.
I am not alone. I know others who had the same experience.