Lowjack is NOT ur best bet. First of all, Lojack is activated when a police officer enters it into NCIC. That automatically triggers it. In some areas it could be hours before a cop even responds to ur location....
Lojack is not very accurate either. Meaning, it simply gives the cop a general direction of travel and you have to follow the arrows in that direction.
Sometimes we locate em, most times we don't. Once they get on the highway they are shortly out of range in a matter of seconds.
Not to mention Lojack is only useful in departments that have the Lojack equipment in their cars. We have 80 crusiers and two of them have Lojack. Most of the sorrounding PD's don't have it at all. NY has quite a few of em but most areas of the country do not.
GPS not only tells you where it is right now but you get to follow it and it's never out of range. You urself can follow it on ur cell phone seconds after it's stolen. Lojack cannot offer that. Lojack is just another tool but probably the last one I would opt for unless it was free.