Like You stated Rushy24...Your going to pay a lot more for the fancy Name Brand Fancy Seed when You can simply go to Your local Feed Store and buy most of the same seeds for a lot less.
1 thing I do highly reccomend is the Pennington Durana Clover...it has done very good and it drought resistant,takes heavy browsing and works good in partial shade.If You can catch it on sale it's not too expensive.

Personally I like planting Turnips,Raddishes,Brassicas and Rape in my Fall Plots and We had great Luck planting Milo and Sunflowers in April/May this year and I even thru in some Clover that's thickening up thru the Milo & Sunflowers.

Our local Hardware/Feed Store has Raddishes,Turnips and other misc seeds in Bulk and I can buy as much or little as I want depending on the Food Plot size and how many Plots We plant.Late Season Plots are usually Wheat & Oats,and hopefully the Turnip /Raddishes and Brassicas Plots hold out thru Nov/December?

If You like the Name Brand Seed mixtures try catching them on sale in the Off-Season for much cheaper prices.