Question on pricing.

Hey guys, thinking about coming back and O see that the pricing structure has changed a bit. I’d never use the device and always just stream on Apple TV but it looks like it’s still cheaper to pay for one device monthly because of the $15 credit each month for 24 months? (Even though I know you pay $10 for the device it’s still a net savings of $5). What am I missing? Do I just have them send it to me and I never hook it up?