Xpectmoreforless via eBay offers the FDW 5-Level Indoor Bike Trainer Stand, model no. FDW-BT9, for $39.99 with free shipping. That's the lowest total price we could find by $25. It uses magnetic resistance to allow you to use your outdoor bike as an exercise bike.
Madison Sporting Goods via eBay offers the Pacific Boys' 24" Derby Dual Suspension Mountain Bike in Bronze, model no. 241128PB, for $99.99 with free shipping. That's $8 under what you'd pay in-store locally. This 18-speed bike features a steel frame and a one-piece mountain crank.