It's $90 with a 2.0 Ah battery and charger. DeWalt's 20V MAX Electric Portable Inflator is a bit more pricy at $140 for tool-only. It jumps up to $213 for the 3.0 Ah battery and charger bundle.
Included in this DEWALT 20V Power Tool Combo Kit is a 20V MAX 1/4-inch impact driver, 20V MAX 1/2-inch cordless drill/driver, two 20V rechargeable battery packs, a 20V battery charger, and a tool bag.