The lowest will be industrial, the lowest restrictions as that may allow noisy, smelly, smoggy, factories.

Also it is two blocks from a major factory in town (which is where I work during the day.  

With the showers/tubs for a rental, just a suggestion that we've found that is cost effective but still gets the "wow" factor is putting a standard surround for the tub/shower, and outline the top with a back splash,  much cheaper, and you won't have to worry about re-grouting!  

While working a full time 3rd shift factory job.

The convenience factor is still the major plus for me here, but convenience doesn't earn money.

The big factor is 1.

Of course, price is a negotiation and the cash flow factor is only a guideline.For daycares, your due diligence needs to go much deeper.

There are also supplement loan features built into commercial financing that allow cash out once the property has been re-positioned.The most important factor is the profit per property...profit per unit is not as relevant. 

Areas where you get blue collar factory workers.

The area is no Detroit but the local economy is difficult and lots of part time work with most of the factory jobs having been lost to automation.