Is this feature there so that you can isolate a particularly expensive term and run an Ad specifically for that term? And how does one do this? How do you set it so that a specific ad will appear?
The feature also lets you set different target URLS for terms which is cool.
I think originally it was started because of the min bids, that are now defunct. Before, one of you terms may have had a min bid of $1.00 and the others had no min bid. You really didn't want to bid $1.00 for all of them (and risk getting burned by the comp) so you could use power posting for the min bid term and the default for the rest.
Here is adwords page on power posting:
[adwords.google.com...]
Means I can sit on a train and fire up Excel and get a bunch of campaigns ready to roll, add tracking URL's per keyword, have a bunch of keywords at different prices being shown for the same creative.
I could write a book on power posting! Are there any publishers in the house?