https://www.cnet.com/news/apple-ipad-mini-4-lives-on/

In March 2017, Apple limited its thinnest and lightest iPad, the Mini 4, to a single configuration with 128GB of storage, costing $399 for the Wi-Fi model and $529 for the Wi-Fi and cellular edition. (See international pricing below.)

Today, Apple announced its newest 9.7-inch iPad with support for Apple's Pencil stylus and powered by a fast A10 Fusion chip for $329 (£319 in the UK, AU$469 in Australia) with 32GB of storage. By comparison, the Mini 4, announced originally in September 2015, is woefully outdated and expensive. And yet, Apple is keeping it in the iPad lineup -- for now.