Amazon offers the Little Giant Alta One Type 1 Model 22-Foot Ladder for $162.92 with free shipping. (Lowe's charges the same.) That's $16 under our September mention, $41 off list, and the lowest price we've seen. It offers multiple configurations, including an A-frame ladder, staircase extension ladder, 90-degree ladder, or a scaffolding system and holds up to 250 lbs.

Update: The price has increased at Amazon; however, Lowe's still offers it for the same price.