Hi Math:
I am happy to read that you found a place to teach you scroll sawing. I am also happy that you decided that you need to make an investment and get a decent saw. So many times, I hear from people who have very cheap saws and are quite frustrated about scroll sawing or give it up altogether. From my point of view, it is a losing battle from the beginning. If you start with sub-standard equipment, there is just no way you will be able to succeed using it.
I have been sawing for over 15 years and if I were to try to cut something on one of those types of saws, I would in all likelihood fail too. There are just too many limitations and obstacles when using those types of saws.
I realize more than you may think how difficult it can be to make the plunge and purchase a nice saw. I know that money is tight for many people (myself included) and it took me years before I could even think of getting an Excalibur. Up until that point I had a (type 1) De Walt, which was at least a decent saw. But after having my Ex-21 for several months, I am so happy that I made that choice. I have never cut so well and my partner says the same thing. It just makes everything "easier."
Then hardest question I get is "What kind of saw should I get?" I find it difficult to tell someone to spend the kind of money that the good saws require, but I hate to tell them to get a lesser saw, knowing that will give them a host of problems.
One solution is to look for a good used saw on Craig's list or something like that. Many people try scroll sawing and for one reason or another don't continue to do it. Often you can find good used saws for a fraction of the cost of new ones. You just need to be patient.
Sorry to be so long, but I think this is a good point of discussion and again, I am happy that you are going to make an investment in your new hobby. I don't think you will regret it. Congratulations!
Sheila