I think that was meant to say 180,000 search engine results, not 180,000 searches.
It looks like it would be relatively easy to get ranked for that keyword.
I only glanced at the serps but I noticed there is no adwords ads appearing. Guess that would suggest no one else is selling similar tutorials. That normally means there's no market for it but not always.
I think getting access to some of your competitions lists is a great idea. You can build your own and may monetize that list at some point (if not in the beginning). It's definitely worth a shot as you already have videos created.