Today the game was in it's 6th day of running and I decided that it had been running long enough. It was slowing down everything else and keeping me from opening up too many other windows. So I sold a lot of turrets and let the game end.
Here's an early screenshot when I was using just basic Cannons with a few Lasers and some other turrets. Turret count: 37 Cannons, 16 Lasers, 2 Waters, 1 Gatling, 1 Arc. Level 70, Score 229,890
Here's a screenshot when I had reconfigured all the turrets. Turret count: 104 Lasers, 8 Gatlings, 4 Waters. Level 124, Score 1,308,107
Here's the final score screen shot. The only change in the turret count was 11 Gatlings. Level 188, Score 20,666,430
The game would have probably continued to run another week at the rate it was going. Most of the monsters didn't even make it onto the playing field before dying.