Yagoozon via Amazon offers Prime members the Hot Wheels Super Loop Chase Race Track Set, model no. BGJ55, for $22.94 with free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping costs $7.34.) That's $3 under our mention from Black Friday weekend and the best price we've seen. (It's also a current low by $3, although most merchants charge $31 or more.) It features a 3-foot tall loop and can be connected with other Hot Wheels track sets.

Update: The price has now dropped to $22.