Little Giant Ladder via eBay offers the Little Giant Boost Stepladder
, model no. 15234-001, for $99
with free shipping
. That's the lowest total price we could find by $52, outside of the mention below. It extends from 4 to 6 feet and purports to support up to 300 lbs.
A close price: Amazon
has it for $99.99 with free shipping, although it has an estimated shipping time of one to two months.