My old meter was not working and I noticed Aldi had a "Bauhn Power Meter" for $14.95. This works reasonably well, with a large LCD display. One curiosity is that it has a readout of kgCO2, but I can't find how to set the conversion factor for converting from kWh. The Model 39085 Power Meter Manual shows how to set the cost of electricity, but not the kg/kWh.
ps: The main use of such meters is education. In practice an appliance's manual is just as useful for estimating energy use, or just the class of device (desktop computers all use about the same amount of power, as do LCD monitors).