Several Problems Caused This
There were several reasons this happened
1: There wasn't enough supply, this was deliberate to create more demand and is a common tactic used by companies when releasing new products
2: There was no attempt made to stop the automated bot scraping of inventory, not just on nvidias site but pretty much everywhere.
3: Fanboi behaviour... those so desperate to have the latest piece of 'shiny' it has to be now because it's the best card ever made... at least until the 3090 comes along and who knows what AMD have... I just know that nvidia have concerns about it.
To see so many complaints from desperate people sulking and ranting because they couldn't get one... was rather amusing... I think these people have far more pressing problems in their lives if not getting a graphics card makes them so angry/upset.
I was also very amused to read about the guy who got a little salty at the bot scraping of inventory, that were then immediately posted on ebay at vastly inflated prices... So he wrote a bot himself that created ebay accounts and placed ridiculously high bids on all of the 3080 auctions... I gave every one watching this debacle with a nice degree of amusement, even more of a chuckle. Cards going for close to 100k because of the bot... and sellers who will have to relist and deal with ebay to get the bids cancelled for non payment and so forth.