Totally agree.
But, I've gotten miles on Priceline tickets this way: it doesn't hurt to use the self-check-in kiosks, which you can then enter your FF# yourself. You may or may not get miles, but it's a try.
<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by Beckles:
The rules of Priceline and Hotwire both specifically state you do not earn frequent flyer mileage for tickets bought through them.
Sometimes you can earn mileage on the tickets, but you're certainly not entitled to them so you should consider it a gift.</font>