That sounds about right for the NES by the time I got it. As for the SNES, I just checked. It débuted at 199$ like I had thought. I believe the Genesis was also 199$.
I remember packing up the SNES whenever we used to have to go visit "family" (not real family), then unpacking and playing Super Mario World the entire time. My ex-step-grandfather would almost take personal offence to it every time, haha. I don't regret a thing
*edit: never had an ex-step-father or a step-father