You can get a rough idea by looking at my log (scroll down to the timeline):

http://www.hardbat.com/puggo/puggoGrande.html

Of course, it doesn't list all the failed captures, times I had to start over, etc. Also, wherever the timeline says "finished bla bla bla", it means that there were many hours before it actually doing the work.

Actually, for me, this stuff is all fun. I wish I had more time to devote to it. I have a queue of projects waiting to be done, and would love to dive into all of them.