Cgkdisc
.:Hall of Fame Member:.
It's a matter of space available. Shorter courses serve more player skill levels and are usually the most popular in an area. However, my approach has mostly been to figure out the highest player skill level for an 18-hole layout that a site could support, then add layouts for three skill levels below that one via two tees and two baskets per hole.On the other hand....
As the number of courses proliferate, there's more justification in different courses in an area catering to different skill levels, without the compromises of each trying to cater to everyone.
I've been fortunate to usually have property available for a blue level (950 rated) layout. Then, have added white, red, and either green or purple layouts when park or owner wanted to upscale and had budget available to do so. Using UDisc, I've then been able to create hybrid layouts for even more options for specific skill levels. Look up Blueberry Hill at Highbridge on UDisc to see how basic and hybrid layouts can be done. North Valley in Inver Grove Hts is my latest upscale to two tees and two baskets. You can see the basic four layouts on DGCR here. I haven't done any hybrid layouts for NV yet.