It all depends what Home's income is.
They made 1M in user transactions in about 20 days, and this doesn't include ad revenue, increased user base over another 3M install base, and other microtransactions.
Assuming a profit on Home of 40M USD, they could be saving as much as 8$ per console through Home. I also think 40M is pretty conservative of an estimate but Sony said they would be announcing more numbers soon.









