Walmart offers the Pro-Form 415 LT Treadmill, model no. PFTL59010, for $399. Choose in-store pickup to dodge the $69.97 shipping fee. That's tied with our April mention and $190 under the lowest shipped price we could find elsewhere. Features include a 2.8 HP Mach Z motor, 18" x 50" treadbelt, iFit Workout Card compatibility, dual-grip EKG heart rate monitor, and 300-lb. capacity.
Of note, Amazon offers it for the same price with free shipping, but it has an estimated shipping delay of one to three months.