I don't exactly like Nintendo, and I can identify at least two reasons for that.
First, they keep their prices high, no matter what the thing is that they're trying to sell. In my eyes, they overprice their products. From Nintendo's point of view this makes sense of course, but from my point of view, it's annoying and not very consumer-friendly.
Second, they're slow to implement advancements in the industry unless it was them that created it. Specifically, online. If we go further back in time, it's cartridges.