Walmart offers the Greenworks DigiPro 80-volt Cordless Lithium-Ion 3-Speed Jet Leaf Blower for $106.70. Opt for in-store pickup to knock it to $74.83. (Amazon charges the same.) That's the lowest price we could find by $53. It features up to 70 minutes of run time on a full charge.
Note that this is the bare tool; you'll have to purchase a battery and charger separately.