Meta:

Downvoting is an accepted method of disagreement on HN. It's a problematic stance IMO since downvotes grey out the text, making dissenting opinions impossible to make out if they're unpopular enough.

Back on topic, 4GB laptops are incredibly common, especially in retail stores. Getting a laptop with 8 GB of memory frequently requires looking online (most folks still buy their computers from retail stores) and customizing your order.

For example, I just visited both Dell and System76, and except for the gaming laptops, all of them default to 4GB of ram, and adding more (while not terribly expensive) requires thought and action on the consumer's part.