Tracy, I think they only hold on to the apps for 6 months so it is worth a try. And as you said there has to be an opening. Where I live there is only two places that offer the classes. I've been at Michaels for 6 years, and the girl before me was there forever as well. So you just have to get it at the right time.
Tmac, I had a student at the end of last year that took the first Wilton classes back in the 70s. She wanted to learn fondant and gumpaste so she came back for Course 3 and the F/GP. When she told me she took the class in the late 70s I thought, wow, I was barely even born when you started, and like you wondered what she could learn from me. But I was able to teach her some things she didn't now and enjoyed having her in the classes.