G-man, trust me I do use NWTF for most of my corn but the midwest drought has limited the amount of corn members can get. I used 4k as if i didn't rotate crop, didn't use club seed etc..Still not cheap to plant. Most of my farm is in corn and soybean and seed is expensive compared to other seed crops. also I don't use any preemergents so post emergence (gly) is another cost.
I have midsize equipment:
JD 4010 90hp diesel
12 disc
4 row trip plow
8 foot cultipacker
1240 JD planter
16 foot boom sprayer
Corn is one of the most expensive crops to plant if you don't cut corners.