This seems to be an UK thing, possibly to keep the sticker price below the 40k GBP tax limit. The option for a lifetime purchase supports this. So it's an extr

This seems to be an UK thing, possibly to keep the sticker price below the 40k GBP tax limit. The option for a lifetime purchase supports this. So it's an extra that you can try with a subscription and buy once, if desired. Seems fair to me.