different strokes for different folks. some people may be happy if their deer gun keeps the bullets in a paper plate size group, me, i'm not happy unless i'm cutting holes in my targets. therefore i push what i can from my guns. i like to do the best i can, there is no "good enough" for me. just a personality trait for me, i'm never sastisfied. so i like to get tight patterns with my turkey gun. yes it has burned me a few times at 15yds but i also know that i can switch chokes and open it up and still know how it preforms based on all my previous testing.
any this is all done way ahead of time, not the day before opener.
Now, my bolt action deer rifles are a different breed all together. There is only one projectile in a rifle and I also feel the need to sight in my large game rifles, along with all center fire rifles. I totally agree with you on this.
If I'm not shooting clover leafs at 150 yards, I'm not happy.
A scatter gun on the other hand can have up to 450 projectiles in the load. While patterning SG's in the past, I found very little POI change when shooting the same load, same choke with a clean bore. Therefore, I feel that once I find the choke and load that gives me what I want from 15 - 40 yards, I really don't need to keep patterning the same set-up over & over. All I need to do is verify my POA / POI has not changed.
Now, If I was one of those that changed chokes and loads often, then I can see more testing and patterning for all those different combinations, but for me, a nice pattern from 15 to 40/45 is obtained and I'll stick with that same load and choke. (maybe [;)])