So in other words, the target demographics arent tired of them.
Not exactly, the target demographics are mostly mindless and buy Mario Party games the same way sheeple go to see Transformer movies. It's less of a "let's make a good game" and more of a cash grab on Nintendo's part. Just like Mario and Sonic at the Olympics.
um no, Mario Party (and most party games in general) is aimed primarily at children and families which is who you just said the game sold to.
Its less of a "lets make a quick cash grab" and more of a light hearted, simple game for children and their parents to play together.
A quick cash grab would be something like Animal Crossing: Amiibo Festival, not Mario Party