Three or four years ago everyone said the cheapest seed sometimes was the most expensive. Now prices are down and everyone wants to cut seed cost. If what you planted then out yielded the cheap stuff and made more money then why doesn't that theory still apply? 
I see a lot of places to cut expenses, fertilizer, chemicals, fuel (more no-till) and others before I would look to buy cheap seed that a few years ago I deemed inferior. 

edit to add. Yes, my son sell seed. That doesn't change the argument about cheap seed being expensive if it doesn't yield.