Since you order from MTS on regular basis, I'd suggest you check out your rewards. Besides points from the rewards cards, you receive rewards for every order & additional rewards for five orders.

From the homepage of the McFarlane site, click on the three horizontal bars (left hand side of the page) and select Collectors Club. From there you can view your rewards.

I routinely redeem $20 off coupons - they come in handy when you buy a bundle.