The thing I fear is that as Perdue is a relatively strong candidate, or at least a credible one, the GOP will be tempted to throw a lot of money in this race, only to lose it by a small margin in the end.
I made a post a while back talking about the NRCC in the 1980s challenging seats in San Francisco and NYC with millions of dollars while ignoring rural seats that could be won with $15,000. I said that they were fighting the last war, with yesterday's map. It still holds true today, people cannot fathom states shifting the way we can and thus cannot fathom that a state that was solidly Republican now is not a good path to victory anymore, so this quixotic spending results.