It's the razor blade strategy. The kit is to induce you to buy into...
· Comment — Misha Berger's photo · View on Facebook · Markdown source
It's the razor blade strategy. The kit is to induce you to buy into the Ryobi system. Once you buy into the Ryobi tool system, they expect that you'll want to buy Ryobi tools / batteries in the future so you have compatible batteries.