Buy the best smoker you can.
An insulated smoker is good thinking in the north east, colder areas.
It is a metal product and should be protected, maintained like your car.
Some will let their cars sit out in all weather...you see the results/shorter life span.
Some will garage/wash/wax their cars and have a longer lifespan.
How long your smoker lasts depends on how you treat it.
I have seen langs abused as well as upright insulated smokers.
I plan on passing my smokers to my future grand-kids.