Concert promotions is dead unless your an Indian and own a casino. A booming industry is e-cigs currently. But I bet the FDA and the government will cripple it soon. There are so many regulations and BS now in the US that don't really promote a small business. Totally different than in the 80's. Stick with a business you know and have the understanding that 90% of all small business go out of business in the first 5 years. Of that 10% left the only 10% will make it another 5 years. So unless you buy a proven franchise its really hard to make it. Can it be done, yes, is it hard, yes.

If you go the buying one home at a time pretty soon you will own a property management company. Great business if you hire the right people.