In Game Upgrades

Here's a concept for future game developpement:

Add unit upgrades to purchase in game. The effect of the upgrade depends on the strat that was chosen.
You lose the upgrade buff when the game finishes.

Examples:

Imperialist - cheaper offensive units
Perfect Defense - more defense
Tank General - more attack for Tanks
Blitzkrieg - longer range
Iron Fist - more HP
Sky Menace - more air attack
MoS - more stealth attack
Great Combinator - more attack on tanks, defense on infantry
Naval Commander - more naval attack and defense
Guerilla Warfare - more attack for marines
Desert Strom - more attack for helis and marines
Lucky Bastard - more crit

Upgrade 1 - 1000$, kicks in 1 after purchase
Upgrade 2 - 2000$, 2 turns after purchase
Upgrade 3 - 3000$, 3 turns after purchase

3 is the maximum upgrade level.

Great idea

What about high fund games like 50k?