How are you doing with your campaigns? I have experience with AdWords but even still I have problems sometimes with finding the right terms to help with my quality score.
If you can find the right combination with your ad, keywords, and landing page then you can often times beat the larger players in the market. I can guarantee you True Green and Scotts are paying too much for their clicks.
Finding the right mix is often very subtle and takes patience to work out. Through trying to make ads relevant Google often makes the process harder than maybe it should be. I've been studying and using AdWords for years and I still get frustrated with it.
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