I dont know. Depends on how you define "core gamers" I guess. If the golden standard is the PS4 from its generation for example, then the WiiU and/or Switch is no match for its power or library of games(I mean the more mature core games). So they are not good replacements for a PS4. The WiiU and especially the Switch has loads of games for more hardcore gamers, but the consoles are weaker than the competition. The Switch is a handheld though and I think it was the most powerful dedicated handheld gaming device at the time it came out. Thats a bit of a stretch to make something seem powerful, but I had to be specific