We've looked into some of the numbers regarding setting up a functioning field: Rental equipment, store/shop, compressed air supply, climate controlled storage for paintballs, liability insurance, staffing expenses, etc.

Folks would never go to the grocery store with a story of why they should get free groceries. 

And I know that as well as store fronts that sell, there are a huge number of indoor grow operations that operate in industrial areas, as we as in residential neighborhoods.

I scoured the web for an in-depth review of Memphis Invest, or any other Turn-Key Rental company, but was never satisfied with the responses.

Are there any other marketing costs like newspaper, web sites, etc?

It's much easier to store than to move.

Plus the big box stores are not cheaper on lumber most of the time. 

I was thinking about creating a website, but wanted to check to see if anyone had any other ways that work or if you have used a web site. 

I don't get over there much but long story short I was in a store there one day and the clerk was talking about how there was no apartments available.

Big box stores can be a great options with lower end prices as they provide a great guarantee.