I picked up an oyster mushroom grow kit two weekends ago from Easy Grow Mushrooms at the Ann Arbor Farmer's Market. I've been interested in trying an indoor mushroom kit for a few years now, after living in a house that had shiitake mushroom logs in Massachusetts. The logs were really cool but they only produce when the weather allows for it and I tend to use mushrooms year round. After ogling the kits at the farmer's market for several months, I finally got one. We put the bag in our bathroom, since it's the most humid place in the house. The bag exploded about a week after we bought it!
We're trying to remember to weigh what we pick, just for curiosity's sake. My housemate and I buy heaps of mushrooms, so I'd like to see if it's more or less cost effective to buy these kits or to get them at the grocery store. If we get more than we can use, I think I'm going to try drying them out. The bag is supposed to keep going for a couple of months, and then we're going to spread it over some compost. We'll see how it goes!