It does seem very positive but scalpers are a bigger factor now and actual consumer reaction once they get a Switch is also important to the ongoing business model. I.e. whether the like it and use it etc.
Good article here about Nintendo.
http://www.gamesindustry.biz/articles/2017-02-03-risky-nintendo-spooks-the-markets
I'm not interested in the Switch at this stage I'm waiting for the VR version with extended battery life and higher resolution screen. So this mk1 version is not really a product for me but its going to be interesting to watch to see how this Switch does. It seems to be heading for a solid foundation at the very least especially in the USA.