The economy is not booming now. Not really a complete bust, either. We're in that lull phase where you're see a a move down of 500-1000, the traders buy/sell, then it goes back up to 18k, and they take their profits.

Not enough bad news to drive it way down. Certainly not enough good news to get it up. If a Republican is elected in Nov, I fully expect the Fed to start jacking up rates (out of spite), so that they can blame the subsequent 3-5k drop on the GOP.....