This is common with college kids, they'll share rooms to get cheap rent.

Your per door and acquisition cost is higher which prevents many starter investors from going there first.Many investors I see buy the cheap houses or rough area apartments not because they want to but because that is their barrier to entry with the start up funds they have.I do like economies of scale with multifamily.

Bought two lots for cheap and combined them.

It's cheap, fast,  and looks fine for a rental.

It's such a cheap, easy fix for a potentially expensive problem! 

Higher rates call for lower pricing, i am buying cheap right now.

The house being on the market not selling after a while is hurting you.Fourth, hope you learned the lesson of not trying to be cheap but hiring the right contractors even if at first, they seem more expensive.

Cheap markets are cheap because the risk is perceived high or the long term return (I.e. appreciation) is perceived to be low.  

The state is very landlord friendly and taxes are cheap. 

You may not want a super cheap house in a bad "crack" / crime hood.