不同拍卖行的估计为什么差很多

<div class="msgheader">QUOTE:</div><div class="msgborder"><b>以下是引用<i>bastian</i>在2010-6-3 15:13:00的发言：</b><br/>
<p>老徐，5002P</p>
<p>&nbsp;</p>
<div class="detail-title-left">rice Realized &lt;!--
<div class="clearer"></div>--&gt;</div>
<ul class="estimate" style="CLEAR: left">
<li class="primary">HK$8,660,000
<li>($1,116,562)
<li><span style="FONT-SIZE: 11px; COLOR: #838384; FONT-FAMILY: Arial">rice includes buyer's premium</span> </li></ul></div>
<p>还行啊,能出到这个数字的人,对数字也不会太敏感吧.</p>

<p>老徐，5002P</p>
<p>&nbsp;</p>
<div class="detail-title-left">rice Realized <!--<div class="clearer"></div>--></div>
<ul class="estimate" style="CLEAR: left">
<li class="primary">HK$8,660,000
<li>($1,116,562)
<li><span style="FONT-SIZE: 11px; COLOR: #838384; FONT-FAMILY: Arial">rice includes buyer's premium</span> </li></ul>