Heavily Enforced
Very Intolerant
| Quality | Average ($/Oz.)* | Sample Size |
| High Quality | $353.3 | 902 |
| Medium Quality | $225.78 | 494 |
| Low Quality | $145.64 | 99 |
| Westland, Michigan | $20 | 10 grams | high quality | May 17, 2012 |
| Temperance, Michigan | $300 | an ounce | medium quality | May 17, 2012 |
| Allen Park, Michigan | $400 | an ounce | medium quality | May 16, 2012 |
| Fraser, Michigan | $45 | an eighth | medium quality | May 16, 2012 |
| Iron Mountain, Michigan | $50 | an eighth | medium quality | May 16, 2012 |
| Ann Arbor, Michigan | $100 | an ounce | high quality | May 15, 2012 |
| Warren, Michigan | $42 | medium quality | May 15, 2012 | |
| Warren, Michigan | $894 | an ounce | low quality | May 15, 2012 |
| Warren, Michigan | $50 | high quality | May 15, 2012 | |
| Kalamazoo, Michigan | $300 | an ounce | high quality | May 15, 2012 |
| Livonia, Michigan | $100 | an ounce | high quality | May 15, 2012 |
| Clare, Michigan | $929 | a quarter | low quality | May 14, 2012 |
| Escanaba, Michigan | $80 | a quarter | high quality | May 14, 2012 |
| Caledonia, Michigan | $25 | 5 grams | medium quality | May 14, 2012 |
| Grand Rapids, Michigan | $350 | an ounce | high quality | May 13, 2012 |