It is if you accept that there might not be any more new games coming to the console.
Cause the wiiU is still at $300 which is still pretty pricey and the games on the platform isn't exactly discounted very much. We also have a few games which are on the switch like BoTW (which has better performance) and MK8 Deluxe. There might be even more ports coming to the Switch as well.
So overall, depends on the person. WiiU has plenty of games to play, many of which are excellent but you can also get a switch for the same price and get more games in the future (granted there aren't that many which are available now).
For me, it was worth getting the system in the past. If I were to get it now... Idk cause me personally would just emulate everything on PC instead.
PC Specs: CPU: 7800X3D || GPU: Strix 4090 || RAM: 32GB DDR5 6000 || Main SSD: WD 2TB SN850
