It is always worth taking advantage of free trial software to evaluate its suitability for your business. The other advantage, of course, is you get to use some powerful software for free, if only for a short time!
I’m currently trialling Click Tracks Optimizer, the overall winner for 2005 Best Web Site Analytics Tool. It’s expensive at US$1195, and I only get to play with it for 14 days.
But if you give the free trial a go, it could give you valuable insight to assess the current situation and performance of your website.