Many of us just try to be "legal and good" residents in Canada. I don't have big courage like yours to risk my status and stability. I just want to keep a peace and worry-free life. For sure people like me do not get much big money --no risk no money.
But please keep in mind that if more and more people do the same thing as you did, sooner or later the authorities of both side will notice that and apply some measures to prevent it. That means the risk is becoming bigger and bigger in the future. Actually you're not the first person who work in the States and still prevent to be a Canadian residents, but you may notice that now a day it's already not as easy as before to behavour like this. So, take care, my friend.