The main demographics of Wii had already abandoned the Wii system for smartphone at the start of 5th year of Nintendo Wii on the market. Nintendo core titles like Galaxy 2 and Skyward Sword performed below the expectation.When people on here say they think Switch sales will collapse, what they really men is they hope they will.
Nintendo Switch in the 5th year on the market, on the other hand, still going strong thanks to the main demographics this time is mainly consisted of Nintendo core fans instead of soccer mom and casual gamers. Enhanced port game like Mario 3D world is going to outsold Mario Galaxy 2 in less than a year lol.
Anyone that are hoping for Switch to follow the same pattern as Wii sales trajectory is in for a rude awakening.