Thanks a lot for all the replies and discussion here, really helped me a lot and seems I´ve made my mind with all the details
I will wait up a little bit cause, again, there is no need for me to do things right now, I get some emulators running on my Wii and WiiU already and, it would be a simple luxury to have them on a portable device, so, it´s something I can wait a little bit more to see how the scene will develop
Also, about the Gamecube controller thing, seems I can update to 4.0.1 if needed with an original game (I have a friend with Bayonetta 2 for example) or, if I hack things in the future, seems also there is a program now that you can update things up with homebrew, so all things good too
And for Smash, when it releases, if I get resources for a new Switch just for it and its online features, great, if not, then this current one will be updated and everything accordingly, it just gives more time for the scene to develop (like a new boot method as mentioned and such) and, for the current games, yeah, nothing too big that I´m missing at the moment
But yeah, needed all this info and discussion to be more aware of how things are with the Switch scene, so, again, thanks for all that contributed, hope this thread was useful for others just as well!