If I was in the business of sniping turkeys at long distances than I might consider it, but I hunt woods and won't shoot past about 30 yards. If a bird hangs up at 40+ than I will let him walk away and try a different approach or let him live to fight another day.
To me turkey hunting is a game of getting a bird to come to my calling, and to come close, 25 yards and in. For me it has nothing to do with killing one in any way other than that. I have zero desire to snipe one, shoot one at a long distance, or ambush one. Maybe if I hadn't killed very many I would push the limits but for me, it is about the game, not so much the kill.
To each their own, and it certainly isn't about the cost. I just have no need to shoot HTL loads. Copper plated #5's eats their face off just fine for me.