title: Magento: Get product price given a customer group
body: <p>On magento 1.7
  I created a promotional price rule of 20% discount for "special members" customer group.</p>
  
  <p>I'd like to display both prices. I thought there would be something like </p>
  
  <pre><code>$_product-&gt;getPriceByCustomerGroup( $groupId );
  </code></pre>
  
  <p><strong>Goal</strong> </p>
  
  <p>(not logged in):</p>
  
  <ul>
  <li>Regular price: $10.99 </li>
  <li>Member price: $5.99</li>
  </ul>
  
  <p>(member logged in):</p>
  
  <ul>
  <li>Regular price: $10.99</li>
  <li>Member price: $5.99</li>
  </ul>