(Sorry to bump an old thread, I only saw the response just now!)
I appreciate the thoughtful response! You're right about the job prospects in my field. To be honest, though, money isn't a practical concern for me; I could go in theory go without funding indefinitely. However it's important to me that my advisor values my skills, and shows enough interest and commitment to "invest" in me. But I'm willing to forego funding for a summer, if it'll make it more likely in the semesters to come.