AFTER20
Yes the Airfow model performs better but if you don't want to fork out an extra $20 this is a pretty good price. As goig986 mentioned if you don't care about looks you can remove the front panel
4000D Non Airflow
White $79
4000D Airflow
I got the 4000d airflow last year - can't recommend it highly enough. Good size and looks bloody great.