.prop() versus .data()
<p>With the new release of <a href="http://api.jquery.com/category/version/1.6/" rel="nofollow">jQuery v1.6</a> and the addition of the <code>.prop()</code> method.</p>

<p>Is there an inherent difference in using <code>.prop()</code> over <code>.data()</code> ?  </p>

<p>I see in the documentation that not removing a property can result in memory leaks in versions of IE prior to IE9. But are there any other performance issues or other issues with using the new <code>prop()</code> method?</p>

<p>Syntax from the site:</p>

<pre><code>var $para = $("p");    
$para.prop("luggageCode", 1234);
</code></pre>

<p>Over the following:</p>

<pre><code>var $para = $("p");
$para.data("luggageCode", 1234);
</code></pre>
