It looks amazing - what an experience. For that much money, though, I question whether it would be worth it. Would I like the any of the techniques enough to justify spending that kind of cash? I'd be adding on a trip across the country, coming from NYS.
Earlier today, I spent a couple of hours watching a Craftsy class, Stupendous Stitches, offered by Carol Ann Waugh - one of the instructors scheduled for the 5th session. Very doable by pretty much anyone, and the price was right, lol. I have taken a landscape class and found it very challenging. Evidently, I can follow a pattern, but making my own or piecing without a pattern is way outside of my comfort zone.
Life is short. I say, if it is appealing enough to you and you can afford it, do it. Nothing will be going with us, wherever we go, when this life is over. Just being surrounded by like-minded people and seeing their work is inspiring.
As far as downsizing - I'm all about it! In housewares, clothing, shoes, etc. Fabric or supplies? Nope!