It's too simple and repetitive. The numbers of OH MY GOD don't fit in my screen any more. I now have so much money that i can't spend it all before getting the next load. My mouse will probably break if i continue playing.
Keep playing Mission 2 and keep spending your War-Mart credits on the 'Bonus Start Funds'. After a couple of rounds you will have enough money to buy everything you like. (it's probably a bug)