i could write a book on my views of training but i won't bore you, we all have our ways of obtaining knowledge, wether it be books or training courses or off the net, there all good, as long as your learning your improving your business and widening the gap between yourself and the "its just carpet cleaning" brigade.
as for the cost?
i'm off to the mossters one day training course tomorrow, £75. if i learn even just one thing from paul, or get a tip from any of the other guys there, it will pay for itself over a year, hopefully i'll learn more. and for that reason, its a no brainer.