You have conveniently left out the cost differential for the printed edition, and you are conveniently pricing the trust/risk/hassle that comes with it at 0. And even in this case I doubt the USD 5 pw is the market price, you are basically assuming there is a kid, who values extra pocket money.
The assumption about a kid for pocket money is relevant because a) lots of people doing the job of delivery papers are kids already and b) even if they're not, they're some doing the same job for minimum or less than minimum wage so presumably have similar desire or need for earning money for simple work.
And as mentioned, the person who suggested it being possible was talking about using an existing physical subscription not paying for that within the $2.5k
So all in all, USD 2500 seems unrealistic.