I have been on a ton of interviews and never rarely got a job.

About 10 years ago, I had my dream job. Perfect in every sense. I lost it because I had a psychotic break. I remember we used to watch deadliest catch and thinking it would be better than my dream job. I never could keep a job.

You have 15 years experience and they actually want to talk to you. Just call in sick the day of your interview. It may be worth it.

A new job closer with more money and a fresh environment could be a really special event. Not everyone has opportunities like that. You should go and as mentioned above - interviews are a two way street. Bring your own questions and see if you would actually like it there.

Good luck either way.