Ummmm....because he's already got some tunes that he's pleased with for now and if he doesn't have the money for the other parts of the Hyperpac what makes you think he has money for a PCM.
Not everyone has to use Jody!
Well, firstly, if he doesn't find it better, I would assume there is some return options. Secondly, I have tried hypertech, SLP and Superchips with their "one size fits all" and while they did do something good, it was nowheres compared to when I got mine custom tuned on a dyno. So, 2nd best would be someone who uses a more refined tuning method. In this case, based on the PCM and makes modifications. Now, I haven't yet tried another "more custom" tuner yet. Jody makes a tune that is closest to a dyno tune as I can get. On my GM, I have used all the different performance chips and while they have done some good, it is nowheres near what Lingenfelter or HiTech Motorsport did for me on a dyno.
Not trying to be a jerk but do you know of anyone else out there that will do a tune instead of a "one size fits all" approach?