We attended an RV show a few years ago and admission fee included 4 issue of Trailer Life for free. Since I was already a subscriber, they indicated that I'd get a 4 issue extension on my existing subscription.
The Good News: I actually received 4 additional issues of Trailer Life Magazine.
The bad news: For 4 months, I received duplicate copies of Trailer Life magazine and no extension of my subscription.
After subscribing to this magazine for about 8 years, I let my subscription lapse this fall. I've enjoyed the magazine, but am at the point in my life where I am paring down and also cutting unnecessary expenses.