As a collector of modern handguns, registration fees would cost me in excess of the cost of my most expensive handgun. It may be cheaper to set up residence in another state. I really can wait until my family responsibilities are relieved and I'm able to leave this state permanently.
It typically costs around $6,000 to $10,000 to move to another State. So that kinda equates to around 100-something handguns. I can definitely see some people moving out of IL for that, especially the older retired folks.