Hey, where exactly in Michigan are you, and where do you ride? I frequent Crystal Mountain all winter, but live down in the Ann Arbor area. I noticed the same problem you have with the lack of available equipment around Michigan for people to try out who show an interest, so I usually carry 4 board and binding set ups with me whenever I hit the slopes. When people ask me about it and show interest, I offer to let them try it out. As long as ski boots are available in their size I can make it happen.
I actually spent an entire day on the slopes with a skier who wanted to give it a shot two years ago. NMU Rider is right about the carvers here being more than happy to ride with others they find on the hill. I do every chance I get, because it doesn't seem like the opportunity presents itself very often. I remember a day several years ago I found myself with 7 or 8 other alpine boarders. I'm not sure who knew who, if anyone did, but that day was the most fun I had ever had riding hard boots.