Misses the "depends on the game". Generally speaking, no, they are useless and uninspired and I will most likely skip them. For example, the minigames in
Milfy City and many other games where you play for money are an exercise in how fast you can enable the console to cheat money in.
There are good minigames out there, such as the poker minigame in
Love of Magic is actually good, and so are the contracts (if you can consider them minigames at all) in
the DeLuca Family, but these two are the only games I've actually had fun with minigames.