When the fans attached to the motors get old they can come off axis as they are spinning off level.

There is, however, evidence that dirty heating and cooling coils, motors, and air handling units can make your HVAC unit less efficient.http://www.todayshomeowner.com/hvac-duct-cleaning-...

PS> I have a 2014 BMW S1000RR Look it up/ If a tenant ever left any type of motor vehicle I'd be thrilled! 

They are a necessary tool for that individual to function on a daily basis, similar to a motorized wheel chair.

I also believe many people might find it more convenient to wait until their current out-of-state license expires before enduring the fun and joy that is to be had at the Division Of Motor Vehicles.If everything else checks out, it wouldn't raise a red flag for me.

She had a judgement against her for over $10,000 in 2008 for negligent operation of a motor vehicle.  

The one I have now has no motor issues - a 92 Toyota Corolla. 

My tenant in Kansas City, MO had to wait 2 weeks to have ac blower motor replaced.

Now if you have a year or two to travel to all these places  you can check them all out in person and figure out what works for you..Maybe rent a motor home and drive the entire country.. spending a few weeks in each area to see if you like it.

Anything that has a motor goes down in value.