Why do you guys pay for Poker Tracker?

[WARRiOR520]

I have been working on a poker database for full tilt hand history for a short time now, and I am familiar with the pay software PokerTracker. I am wondering why you guys, some with programming experience choose a program that you must pay for to do the simple action of converting flat text files into a working database. All the tools that it uses are free, for instance postgreSQL, so why hasn't someone written a parser, it is a fairly simple thing to write, and I would get started on writing an open-source one, but I am still trying to learn the best way to store data that is this complex. If any of you who have paid for the software would like to contribute it would be a huge help for me to just see some sample data of a couple hands so I can make my database somewhat compatible using PT for the base, and adding all the features that I think are necessary.