Hi,
I really only takes a couple of minutes to make a Lens - that's the thing. I don't see it really sending traffic to your other sites. In fact, you really need to give it a couple of links from somewhere. However, as has already been stated, I do see it getting indexed. I see lenses sort of like article submissions. The main payoff is not really in traffic most of the time, but indirectly through getting indexed and sending SE love to the other places you have indexed.
Ha Ha. I did make .26 from my Squidoo page.
