Werner 17-ft Aluminum 300-lb Telescoping Type IA Multi-Position Ladde [lowes.com]r $ 119.25

Werner 13-ft Aluminum 300-lb Telescoping Type IA Multi-Position Ladder [lowes.com] $ 74.25

Not the cheapest prices but still good deals. You can get them less with $ 10 or $ 20 off coupons you can find online.