It’s also amazing because Lucene was created over 20 years ago and made available for free. It’s an incredibly powerful full text search algorithm suitable for most website content except the largest scale. Elasticseaech was built on top of it to make it easier to use and is also available for free.

These technologies power Wikipedia’s search, for example, and you know how much content Wikipedia has.

My point is… There are free technologies that make search excellent.