Ask yourself/your family these questions:

Why do you want to leave your current job that pays more than you will ever make as an FO at any regional?

Are you willing to relocate to one of our bases or are you willing to commute?

Are you able to be on the road for 5-6 days at a time while on reserve? Probably more if the answer to the first question was commute.

Can you survive on first year pay, or second for that matter?

If you go through those questions and still want to come for an interview, give it a shot. You're not wasting the interviewers time by showing up while unsure if you even want the job. You're Interviewing the company as much as they're interviewing you. All I can say is you can do far worse than Air Wisconsin. They treat you pretty well here, really well for regional standards, and our insurance is phenomenal.