It's total clickbait. Also, the article mentions they bought 4000 acres in 2 years. The vast majority of this is rural, where farmland runs 5-20k per acre. Let's be generous and say they spent 50k per acre. That's $200mm dollars. Absolutely nothing to amazon.
And a single full-size Amazon fulfillment center plus its associated truck yards and employee parking lots can easily take up 0.5 - 1.0 square miles (320 - 640 acres / 130 - 260 hectares), so this doesn't seem like a lot of land, given that they already have more than 100 fulfillment centers in the US.
