As of 2016, the EM3586 - HVAC electric motor, Zoro Split Ph, 12vdc electric gear motor and US Motors ODP 1725 RPM motor are all low-cost electric motors. These electric motors range in price from $18 to $140, depending on manufacturer, size and type.
The EM3586 - HVAC electric motor costs about $135 on PalmersElectric.com. This motor weighs 10.75 pounds and has 230 voltage and 1075 revolutions per minute.
The Zoro Split Ph electric motor costs about $70 on Zoro.com and has HVAC/R applications, while the 12vdc electric gear motor costs $18 on FirgelliAuto.com and has a 16:1 gear ratio.
GlobalIndustrial.com lists the US Motors ODP 1725 RPM Motor at about $75. This is a general purpose motor with a rigid base.