They might be looking for ideas for their own escape.
Years ago, I received two offers within a short period of time. When I told the guy I was going to take another offer (ATA) over his company, he asked me how I was able to get on at ATA ( with a tone that made me think about asking him if he wanted me to walk in his resume) I didn't but it was sort of an awkward moment.
I hate interviewing.