[danneu]

I use Adwords to test things ranging from product titles to high level ebook concepts to optimum price point. The only way I could see it becoming too expensive is if you're shooting way too broad, so I'd like to hear your experience with Adwords and how our usage differed.

[mootothemax]

Great stuff! Can I ask what your typical budget is for testing these things? I understand if it's confidential, but I'd like to start working out how much a typical test costs :)

[danneu]

I recently spent just $150 in Adwords to get enough CTR data to choose from a list of product titles over a couple days. Most I've spent was $500 simply because I drilled down so deep into slight variations. The cost is really simple to figure. (How much are you bidding per keyword) X (How many clicks do you think you need for a good data set). 500 clicks at $0.30 is the $150 I spent. 500 only because I was testing between so many broad variations. You often don't need more than 100 clicks to see a clear preference trend.