PlusOne - Musings of a marketer

I listened to a webcast recently (a typically long, padded out dialog that Americans seems to love so much - don’t beat around the bush - gimme the facts!) and part of this covered how to delete adwords that had gone inactive and then resubmit them - using the minimum bid amount.

Tried that - a few days later the keywords - AND a whole bunch more had gone inactive.

Now, I’m new to adwords, but to me this smacks of being ripped off

Let me know your thoughts - or explain it so I can butter understand it!