... it's just a revenue generating scheme for IL, but you can't get around it.
Which is why some owners register their planes in other states, such as Delaware!
Some boat owners do the same thing, registering their craft in Rhode Island or Delaware. So the Connecticut legislature changed the law to say that if the boat spends at least 60 days in CT waters, you have to register it here. Furthermore, the marinas are required to notify the state of such time-in-residence. In effect, all of the marinas have been deputized as unpaid tax enforcers.
Which is not unusual, since payroll managers are effectively unpaid federal/state tax collectors of payroll taxes on their employees. <img src="/ubbthreads/images/graemlins/frown.gif" alt="" />
As someone opined earlier on this board - sure, you may think you own your airplane outright, but miss a few tax payments and watch how fast it gets taken away!