Magazine subscriptions

I just got a "Last chance for continuous service" notice for my magazine subscription that I have 2 more monthly issues left to recieve. Why does it take so long? We can write, photograph and design an issue in 2 days, send it to the printer on Monday night and have it on the newsstand on Wednesday morning, but it takes 2 months to send an address to have printed on the label? What's up with that?