Rockwell Tools via eBay offers its Rockwell Sonicrafter Cordless 27-Piece Oscillating Tool Kit, model no. RK2522K2, for $79.99 with free shipping. That's the lowest total price we could find by $60. It includes multiple blades, 20 sanding sheets with a sanding pad, dust extractor, two 12-volt Li-Ion rechargeable batteries, 30-minute charger, allen key, and carry bag.

Of note, these kits are new units that have been "slightly tested" and then reboxed. A 2-year Rockwell Tools warranty applies.