Just a warning for people that see this, generally you're going to want to spend more like $150 because you want to make sure you get a unit that has true variable power and not duty cycles. If you get one with Duty Cycles you're likely going to hate it because temperature control is going to be almost impossible unless what you want is full blast or almost nothing.

If the only thing you do is basically turn the stove on to high and that's it then you won't care but if you ever do anything that needs to hold a very specific temperature you are going to definitely want a unit that has a true variable power inverter so that it can actually change the power output instead of attempting to approximate that through Duty Cycles (turning on full blast then off in cycles)