[LamerOnLine]

rather than hotspot why not just put the sim in a dongle? No gps available then (unless your laptop has it)
In my country i card a bunch of preloaded SIMs which usually last around a month of carding then switch out. Every few SIM's i switch out my dongles.
SIM's are surely more secure than using wifi .. best they can do with sim is triangulate .. wifi they know exactly what building.
In all likeliness its the stuff you do in real world i.e picking up goods, going to the ATM etc that will get you caught not the only stuff