Biddle and Fried are $550,000. Plus Gohara if you happen to use him out of the pen.
Let the numbers-hounds debate who's league-average. Regardless of who that turns out to be, all three of those guys are better than Freeman - historically and projections-wise. If it's all about maximizing everything and not wasting money anywhere, *issing away an extra million dollars on the very last RP in your pen seems pretty stupid. Will that extra $1 million be the difference in being able to sign Brantley or McCutchen? Maybe, maybe not. But if it is, the dropoff to the next tier of available free-agent OFs is awfully big - it'd sure suck if not having that extra money around caused you to have to bring Markakis back or settle for Adam Jones or Denard Span if everybody wants you to overpay in trades.
The Braves will always need to pinch pennies - even when they have huge amounts of financial flexibility like they did this winter - especially when they roll the dice on someone like AA did on Donaldson.