We pay $79 a month for swiftype. We use it for our site search, using the developer API. The big thing for us is that we have member's only content and we want

We pay $79 a month for swiftype. We use it for our site search, using the developer API. The big thing for us is that we have member's only content and we want to ensure what exactly is indexed and what is not. This was an issue with using Google site search especially since the rankings would get skewed by Google including words in our site template. We've also added in custom filters like searching by author, date, category, etc. If I remember correctly, we paid about $1000 a year to Google for our site search before this, so the money is about even but the overall search quality, accuracy and options have gone up.