<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by JohnG:
I am glad they enforce this.
Why would anyone bother qualifying the hard way if you could just do 20.000 challenge miles every year instead of 50.000 ? 
You might as well drop the PLT to 20K all together...</font>
The same argument applies to purchasing the PLT or GLD renewal, as AA permitted last year.