I like the idea if you can get the primers in the strips. I have never seen them for sale at a gun shop, so they would either be special order items through a gun shop, or mail order items (with their attendant haz-mat fee). The prices I've seen for primers in APS strips is slightly more than primers without the strips. If I had to load the strips myself, I would not use the APS system. It would simply be too time-consuming.
I use the Dillon priming tubes for my high-volume loading and it takes 10 minutes to load 500 primers into tubes. It works great and you never have to touch a primer (well, almost never.)