According to good niche you will atleast earn $100 for 1k clicks . If i will compare my than may be i can earn $150 + guaranteed .
He made $60 from 1000 clicks and not from 1000 impressions, though I think it is low but revenue per click depends upon niche on which your web site is based. Like if your web site is based on health niche then you could have made lot more then this.
Per 1,000 adsense clicks on my largest network it usually averages out to between $75 and $85. However, that averages out to between 7 and 9 cents a click if I have calculated correctly, so I'm sure higher paying niches could hit anything upwards of $100.
First of all if you are making $60 per day then you should be happy as many of us don't even reach that amount in a month Secondly the ecpm depends on your niche and the traffic source..So you just concentrate more on your content and link building as ecpm is out of our control!!
If you get $60 for 1000 clicks then this seems to me very bad. Of course, each click can be anything from $0.01 up to few $10. Depends on many factors. You should use some tool like AdSenseLog to analyze clicks, earnings, etc. Probably you can optimize ad placement, ad type, color palette,...