Some of the primary economic drivers include Marion General Hospital, Cafe Valley, a GM transmission plant, and the small campus of Indiana Wesleyan University (a little under 3,000 enrolled).

What are some of the other big drivers that impact rents?

Money Mustache, JL Collins NH, and The Mad Fientist, among others.  

I love to make my calculator mad.

I was just wondering if there is a method to your madness (watching all podcasts) or are you just taking everything in as it comes?

The at fault driver had them and they were great. 

My next rental is going to be in the Killeen area for the following reasons: Cheaper, good rent to value, economic driver in the base. 

Additionally, we have super strong job growth and some really awesome school districts, which is the key driver for desirability around here. 

I've been researching like mad about financing and plexes.  

I have been reading like a mad man, and I feel like I have a pretty solid understanding of financing, renting, selling, controlling the properties you buy and a variety of other techniques and investment methods (I have not actually done any deals, however - I'm only 18).However, there's still one definite gray area that remains, and that is this: what are the risky  aspects of investing?