One way to tell if these programs are good, is by making the owners show you the quality leads they are getting and quantity, and how many of these leads they closed and how much the average profit is of said leads.I for one am not sold on this until I see concrete data!

As a professional investor over 10 years I have always emphasized quality over quantity.

I've always taken a quality over quantity approach to my portfolio, granted it is only a side hustle for me. 

They care more about quantity over quality.

@John RinggoldJust to add to what Clayton's wrote, I'd say, first and foremost, analyze your competition, i.e. the quantity and quality of other storage facilities in that area.

Jack Frost/Big Boulder have nicer developments for sure, and the advantage of being close to Lake Harmony, because if you're on a ski mountain for winter guests, that means you're not on a lake for summer guests, so it seems to me it's either one or the other—summer guests or winter guests—unless you (a) do something like Lake Harmony that's so close to Big Boulder or (b) shoot for something in a lake community that's just a couple of miles from skiing.

Did you have a quantity in mind? 

Surely, there must be some standard colors that appeal to the largest quantity of buyers.

The effect is  to  collectively REDUCE the total quantity of money banks can loan on that particular market and thus acts to REDUCE the  banks cumulative  loan revenues.  

Also, if you buy two identical units you have better chances of getting an additional “quantity” discount.