What is this obsession between video games and mushrooms!?

One blogger from the site chu chu rocketeer! has submitted a blog discussing how every game seems to include mushrooms. They make reference to such well known series as Mario to Mushroom men and games across all consoles.

It discusses how mushrooms are, in all honesty, just filthy fungi. An alternate interpretation was an ingredient in witchcraft. Now, however, it's a colourful and vibrant (often cute) character/item in your video games (with such examples as Toad and Toadette). Supposedly, the original idea came from Alice in Wonderland.

So are mushrooms taking over? How do you feel about this "fungi invasion" on your screen?