A) takes my ideas seriously even if she doesn't see the end game. Just says go for it and see what happens.
B) comes up with trainings and stuff that match my role that she can send me on.
C) holds me to a high standard without being a jerk about it.
I will be bummed to leave and stop learning from this person's example. I'm taking a hit financially but I've come a really long way. So I'm being reaaaal slow in the job hunt. I know when I'm in a good work environment, and I might not find that. At the next job.
As a manager myself, I will go out of my way to retain a good employee. Our wages are low (nonprofit) but we can be very flexible to the needs of an employee. Diligent, dedicated people who care about doing a good job are worth their weight in gold.