The thing about not knowing what course is best / cheapest favours CATS as you can view the entire first subject for free
www.catsground.com/go/demo which then counts towards your training
you can then decide if you like the style of the system
I have friends who were already at other schools who have just bought extra subjects at CATS for the quality and ease of use of the system
as for its price you really do save money and it all counts