This may not be worth two cents but Ill offer it freely.
Some video courses focus on universal tips and techniques while some focus on the mindset and style of a specific player. That said, the scope of the Doley course seems more focused on playing like Doley. Are you inspired wanting to blend his style with your own?
You probably know this and are really wanting to hear from decent players who have experienced the course to see whether they found it worthwhile. I am just a non-professional noodler and have not done the course. FWIW I would choose the Monaco course. It can be purchased in increments, I didnt check for overall time comparisons but you can buy everything for significantly less, it appears to have a broader scope and I happen to like the way he articulates his ideas.
Aside from the production and content quality of a video course value derived is subjective and you have the usual factors of where you are at, what you want to be, what you are looking for, how much money you have to spend, how serious you are and realistic you are in terms of utilization and committment to the investment, etc..