If the market is at $1000 per month and your property is comparable with houses commanding that rent, then you should raise rent immediately.  

It will command respect.

The investment of a solar array on a house will mean different things for people in different areas in terms of a higher resale value, so while you may have not seen it in your area, there are other areas where it is highly desirable and will command a premium. 

Would eventually like a nicer one in a nice neighborhood... but where I'm at in life just doesn't command it and I'm hell bent on growing my business so every extra dollar earned is reinvested in my business, with a few set aside for my rental portfolio.

Might be a good idea to get a sense of what the neighborhood commands from MLS instead of just Zillow. 

Know the law, obey the law, treat people honestly and fairly.That will protect you far more than any LLC or insurance policy or attorney.these are great commandments to follow.. stuff can happen but so can a dual bird strike causing catastrophic engine failure and a landing in the HUDSON river.  

Primary markets and class A properties will always command a higher CAP Rate than secondary / tertiary markets and B, C  class properties.  

@Garrett Hawk how are you able to invest less than $1,500/door to command those additional rents?

My son is stationed at Dam Neck, and my daughter and son in law are going to that command from Pearl in about a year.

Commander.