I think the value of the paper work has changed so much, you can't compare a piece of paper awarded for a 4/5 day course or a 2/3/4 week course, to a piece of paper that took 5/6 sometimes 7 years to achieve + in my case one day per week day release to a real building college for five years, as well as the five years serving my time with real master tilers.
I am not putting the short course guys down, I have said many times, it is always down to the individual. But if I had to choose between a time served guy or a course guy to be a part of my gang, knowing that my reputation/business was on the line, I would have to choose the time served tiler every time. If for no other reason other than that the time served experienced guy has probably forgotten more about tiling than some of these tutors will ever learn.
I hope I don't offend to many people with my comments, that is not my intention, over the years I have met/worked with thousands of tilers in the UK and all over the world. I have met the talkers, and the real deals. I find the real talented tilers don't talk a good job, they just quietly get on with it and do it. Let us hope this trade doesn't go the way of so many others like dry stone wall men/thatchers etc. Sorry for the mini rant.