I mostly use Indian Creek chokes and don't worry about it. My guns are dedicated turkey guns and as such, see very little shooting. I check zero before the season (1 hopefully no more than 2 shells) and then however many during the season. In TN we are allowed 4 birds.
With the sighting and hunting, maybe 6 shells per year.
I have been shooting TSS for about 10 years now and my chokes are still putting up high numbers and good patterns when I shoot the paper to check zero.
Even if I had to buy a new choke every year, that would be the cheapest part of turkey hunting for me. By the time you figure gas, time, calls, etc. a $60 choke is not at the top of the cost list. Having said that, I would not want to buy one every year and based on my situation, I have gotten my money's worth out of my chokes and they are still going strong.
