I think I paid $220 for mine. Was the only one that Target Penrith had so I put it on layby. Then a few weeks after I got him out of layby, there were like 10 of him on the shelvesI must have been lucky though because mine does not suffer from any of the QC complaints.
As for Grimlock, I would be tempted to buy one, even though I do have the TakTom version. But when you need every spare penny, I just can't justify buying another version of him. Maybe they will still have a few when I actually have money again.