I just started a new campaign on a page that I've had for a while. I had to bid up due to some higher min bids but I am getting a very nice CTR. Also, my cost per click is nicely lower than my bid. My question is what sort of time span will it be before my min bids drop? I've seen it happen before but don't recall if it was days, weeks, or months before changes happen. Thanks.
I think nobody really knows, except the people at Google. Imo, if your page is really optimized for those keywords, it may be 2-3 days. That's the time period that usually see my keyword min. bids drop (or rise, depending on my optimization).