Why do you think OG Xbox often viewed as successful and Gamecube as unsuccessful, when they sold almost the same

[BraLoD]

Xbox was a good start for Microsoft, meanwhile the Gamecube market 3/3 for their new console selling less than before (SNES, N64 and GC), by that point Nintendo consoles had only sold less and less as they moved generations, so it was an ever present downward trend which couldn't been seen as good at all