I thought the X1 series was discontinued

But I see it still advertised here: Bambu Lab X1 Series | Desktop 3D Printer | X1C | Bambu Lab
so is it finished or not?

It is still being sold at some resellers.

Anyways, that just shows its capabilities, it is not a store page.

what you’re seeing it’s the leftover stock of X1s in some resellers shops. X1 has been officially discontinued, check Bambu’s official statement here:

X1C EOL

Click “Products” at the top, select any other printer.

All the other printers include a “Buy” link, the X1C does not.