Last March, Apple confirmed that the HomePod took a back seat, focusing all your efforts on the HomePod mini. A few days after this announcement, the Space Gray model was sold out practically all over the world, leaving only the white model.
For a few hours, the HomePod in white no longer available in the US Apple Store, although we can find it in other Apple Stores such as Spain (the model in Space Gray is not available) with shipping the next day and the possibility of picking it up in some physical stores.
When Apple stops selling any of its products, quickly the section of the website is no longer available, although at the moment, on the United States website, it is available, so it is more than likely that Apple is waiting for the HomePod to be sold out worldwide to eliminate this product permanently.
When the iMac Pro was discontinued, another of the products that Apple has launched in recent years that has not had the success expected by the company, all references to this model were removed from the online Apple Store within hours of stocks running out.
Despite the quality offered by the HomePod, Apple's first solo speaker (without the Beats brand), it probably did not succeed in the market. due to its high price, despite having reduced the price a few months after its launch to 329 euros. With the HomePod mini at 99 euros, Apple has managed to hit the nail on the head and from now on will focus all its efforts on improving it in future versions.