Too much Cash dont help in Mafia Wars

Iam playing the Mafia wars from 3 months now i figure out cash does not matter in the mafia wars actual is the Experence and Energy that depends i have trilloins and every day counter increased. but with this money i cant buy anything it is wasted because i weapons is being bought from the money doest not help when you advance in the level. I am on level 173 i bought 100 properties of every one property in the Mafia wars like 100 casinos and 100's of all . Now i know money does not help if i bought too much properties which will not help me in any thing better not collect money once you advance to level 50. I sugggest select Manic instead of mogul in the Beginning.