That could negate the fun of the coupon though, if they're $6.99 at TRU and WM. 
I dunno, I think the coupon's still a good deal if you maximize it by making sure you hit just above the minimum amount of $25 during each transaction.
Four figs @ $7.49 each = $29.96
After coupon = $24.96
$24.96/4 = $6.24 a figure
Whereas if you bought, say, ten figures, all at once:
10 x $7.49 = $74.90
After coupon = $69.90
$69.90/10 = $6.99 each
Sure, you'd have to make a few more trips, which is kind of a pain in the ass, but if you're a cheapskate like I am, it's worth it.