Well, you buy them and they break and you replace them (almost always especially the latest ones).Anecdotal, but old-style (ie ones with transmission) last about 3-5 years (depending on how much tenants abuse them).Latest ones, direct-drive and no agitator bar, seem a lot more reliable.  

(along with hydro, but hydro has significant constraints)During the day when all of those solar panels are producing power, who is paying for the unused transmission, distribution, switchgear, metering, line crews and spinning reserves on the utility side. 

Like if your car's brakes are on the fritz, you take it in, they fix the brakes but trash your transmission in the process.

Be cognizant of flooring material that reduce sound transmission between units since it's an up and down unit.

I could never make money selling used cars :)...Well, you see....The brakes are flakey, the tires are worn so it is going to need an alignment, I hear a knock in the engine, it uses oil and the transmission doesn't shift right......Who would buy my car at retail?

@John Oberlin I work in power development and we do access and transmission/gas agreements with landowners all the time.

Get 2-5 quotes and go with it For the same reason Jiffy Lube brings up transmission flushes to women more than to men. 

Now the big difference that is very important is the transmission mechanism in how the government spends money.

It now needs the $3,800 transmission replaced.

The difference is that when a life event occurs, (sick child, fender bender, bad transmission in the car), the dominoes start to fall which CAN result in issues with rent payments.