Our pre-update values are chosen specifically to be lower than the average amount for that ad region. For example, the generic PPC for the US is 11 cents, whereas our real updated values for the US are normally well above this.
Our PPC values are exactly what Google pays us, so if they don't pay us very much for the traffic, then we cannot pass much onto the user. In your case, domainer50, the majority of your 37 clicks (28) come from Asia on a lesbian keyword. Lesbian and Asia is not a good combination for high PPC.
In addition to this, the traffic on all your domains has gone from 1 or 2 a day to several hundred. Please be aware that we ONLY allow natural traffic. If traffic is bought or driven (especially from Asia), then the PPC is not going to be impressive. Please make sure that the traffic on your domains is not bought or driven from other sources.
Ed