I'd suggest you create a 'farm' of several dozen such sites, monetized 2-3 ways to head off an Adsense ban, and with multiple pathways for getting passive targeted traffic besides SEO/ranking in order to mitigate the impact of Google de-ranking or penalizing you. Examples of the latter include social media links, YouTube and other video marketing, Yahoo Answers, etc. When your site can thus still make you money and generate visitors without Google being involved, you have broken its shackles and can build a stable money making empire.