The Studio Display is considerably more expensive than other 27-inch monitors. However, rumour has it that Apple has no plans to release a cheaper and 4.5K option, contrary to earlier reports. Instead, Apple will focus on bringing a 7K successor to the Pro Display XDR.
https://www.notebookcheck.net/Studio-Display-to-remain-Apple-s-cheapest-external-monitor-with-24-inch-and-4-5K-option-ruled-out.610409.0.html