I know that some of you are thinking to yourself "Why should I pay for Web Analytics product when I can get it for FREE?!". There are many reason why someone can consider buying a web analytics solution. I most of the cases when you are buying a web analytics product, you will get features that you will not find on any other free Web analytics solution. Because if the features would have been alike, nobody would have to buy any paid web analytics solution.
Many web analytics vendors are working very hard to try to "invent the wheel", but really, there are so many feature that Google analytics don't have, that you don't have to be a rocket science to come out with great ideas and implement it in your own web analytics solution.
A few months ago, Google has presented some newly developed features that many people thought that Google will not present them, at least not so fast. Take for example one of the most important features, "Advanced Segments" or "Segmentation". Until then, everyone used Google Analytics and watched the data not segmentaized, but presented as one group of collected information. By looking at the data that was collected from all your website visitors according to date, you just cannot get a real value when you try to analyze the data for all this group of visitors.
So many companies has realized the value of developing paid web analytics software, and they offer features that many Google Analytics users can just dream of. So is it worth the price tags, well, its all depend on your needs. For me, I am perfectly satisfied with Google Analytics and I don't need the real-time advantage for example. But many companies will find the paid web analytics solutions very useful and worth the extra price tag.