I used to deal years ago, when I was in year 10 back in high school. But, that was because my maye use to steal ridiculous amounts of bud from his mom... and we didn't have o pay for it. I made good bucks in those days, even though it was kinda "small-time". But, being that age... I wouldn't have got into as much shit as what I would now, and wuld have most probably gotten off with it. Ocassionally, I would obtain a couple of 10-packs and sell them at parties to well known friends adding an extra few bucks here and there a pill (these weren't my REAL friends).
But, those days are long gone. I have too much to lose at this age, and I can't afford a criminal record. If you're looking to get into it as a career, and you're already in your twenties... expect some serious consequences to be had, like... long prison sentences and dealing with dogy characters. You will more than once get ripped off by people you thought you could trust. It's unbelievable, how often you think you KNOW someone, then when drugs come into the scene... you realy don't know them for shit and they are pretty much non-existant in your life when they're in debt.
There is no such thing as how they depict it all in the movies. Sure, it would have it's profit-reaping moments... but added with paranoia and dealing with HUGE amounts of drugs like Coke and Heroin, you would be more than prone to be ripped off, or even fucked over somewhere down the line. You'd be surprised how many people don't have the "frontage" for something like 5 ounces worth of charlie, or H.