And the msrp for both of them in Japan is 20,000yen (16,000yen if buying from amiami and hlj), but that's more an issue with local purchases as importers get a slight discount to factor in shipping (and I tend to order in bulk so that helps my cause).
One thing though, even though mpm's aren't as glamorous as mp's you *can't* call them a straight hasbro product, they're billed as a jointed product (plus the usual garbage of same designers same factories etc its just really hasbro saying skimp an accessory here and some paint there), just doesn't feel fair, I honestly wish mp's were a LITTLE closer to what mpm's do (design wise, apart from mpm04 I have more fun with them than mp's).
I guess it would make more sense to me if megatron was more expensive being such a big boi, since he still isn't a 2 step himself