This highly-reviewed City Pickers 24.5" x 20.5" Raised Garden Bed with Watering System is $28.47 at HomeDepot.com. Even though there is no advertised discount, this is the lowest price we found anywhere. Most sites are selling it for $40-$50 like here and here. It's set on casters, will automatically water plants, and has an aeration screen and mulch cover. Shipping is $5 or order for free pickup at your local store. Sales tax is charged in most states.