Pre-Order If You Own NBA 2K19 If You Own 2K18
If you own a copy of NBA 2K18, you can take advantage of another special NBA 2K19 offer.
If you plan to buy a digital copy of the 20th Anniversary Edition, can't find a deal at Amazon, Best Buy, or another retailer, and own a copy of NBA 2K18, you can save 10% on a pre-order.
To take advantage of the deal, you simply need to boot up NBA 2K18 and follow the on-screen prompts to redeem the offer.
It's not as good as the NBA 2K19 deals from Amazon or Best Buy, but it doesn't force you to sign up for a membership.