Thank you for your feed back. I know what you say. BUT; If I load 20 sprites and each have 100 {just for clarity} instances of those sprites created. Is it better to let construct create those 100's of instances each call to the map? or; is it better to negate that and fully have the required map already created as a .png with no instances and just apply collisions? Thank you. I could use Photoshop or another tool like RPGMaker and such to achieve the same result.
When loading the layout into video memory, each sprite view is loaded once. In your example, only 20 sprites are loaded into memory.
So breaking the world into small repeating parts is very beneficial.