I'm pretty sure that Vaults guardsman has been on sale now for close to 2 years lol. That whole wave has been as well as some other ML's like Modular Iron Man and Comic Iron Heart.
^ looks like Destroyer+Thor 2 pack is also around $42 on clearance. The 5 pack is under $90 but no stores out here except for GS have that set here anymore.
As an FYI the red coupons that they've been giving out since October did somehow apply on my receipt in store today. Out of the $20 off $100 spend amount, $10 applied to the non-clearance item and $10 was split between the XMen 3 pack I grabbed along with the TVC Endor Bunker. The back says not valid on numbers that end in 8, but the computer still apllied it from what I see.
Maybe it's YMMV if the cashier says you're not allowed... but if you're over $100 you may get another $20 off with the coupon?