For people who want Verizon service and outside their lte coverage, the 4S is actually the better choice: unlocked iPhone will work in 3G areas when needed worldwide.
How does one purchase such thing from a known individual, while retaining the unlimited and perhaps changing the phone number?
The payout to that certain individual would be the fact that they would be free of their 2-year contract and able to buy a new iPhone 5 at a subsidized price. Is that a fair price, or should they pay for the favor?