Amazon offers Prime members the Scotts Snap System Spreader, model no. 77105A, for $10 with free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping costs $10.84.) That's tied with our mention from a month ago and the lowest total price we've seen. (Outside of the mention below, it's also a current low by $33.) It folds down when not in use and features an edge guard.
A close price: Lowe's charges the same with in-store pickup.