Anderson Ranch has a great line up this year.
Arrowmont and John C Campbell have great offerings too.
I highly recommenced buying a class over buying a new lathe
Each year the Florida sympsoium gives scholarships to each of these fine schools.
These are three best known Non-profit schools for woodturning.
Most important for woodturner is the teacher and what is being taught.
Al Stirt is a great teacher if you wish to learn from Al Stirt
You need to go to the Anderson where Al is teaching this year.
If you want to take a course from Trent Bosch or Jimmy Clewes your choice is Arrowmont
http://www.arrowmont.org/
If you want to take course from Steve Sinner your choice is Campbell.
https://www.folkschool.org/index.php?section=subjects&subject_id=46
next year they likely will be at the one of the other schools.
Besides who is teaching this year, there are some differences in costs of the courses and the expense of you getting there getting there.
Campbell has the most classes and the most offerings for the beginner.
all have great courses for the intermediate and advanced.
Campbell also has forum participants: john Lucas, Ed Moore, and Bill Grumbine this year.
Arrowmont has forum participant John Jordan.
You won't find a bad class at these three schools. But your choice will center on what you want to learn and maybe where you live.
Again a quality class will do more for your woodturning enjoyment than a new lathe. You can do great work the please you on a crummy lathe and crummy work that displeases you on a great lathe.
happy turning,
Al