I really don't like the mindset associated with it that men just 'naturally' like looking at boobs and hence it will automatically sell. Because I think it's stupid, we are not 'driven' by our natural instinct, we have free will.
It's like when people try to defend their jerkiness by arguing that human beings are naturally jerks, no you chose to be a jerk. Just as people choose to buy into sexploitation style marketting.
You are not being programmed to do this, it's your own choice.
Plus, as I'm sure has been stated before, just because sex sells doesn't mean we HAVE to use it. Look at games like Halo, Gears of War and Call of Duty. Huge game franchises that have made millions upon millions of dollars, they never once had to resort to cheesy sexploitation style marketting to succeed. I just don't understand why people seem to determinedly think that sex appeal is a 'must' to sell games.
(Oh and before anyone mentions Cortana, I don't recall the Halo games ever marketting her as a direct sex symbol. That the fans made her one is irrelevant. Fans make EVERYTHING a sex symbol on the internet)
Maybe they can appeal to a market, but it's still cheesy and stupid and arguably going for an easy 'no trying' solution. Plus, like it or not, it does still help to reinforce unpleasant gender stereotypes.
Like that:
A. Men are all raging sex fanatics who cannot control themselves and go wild for tits at the first possible glimpse of them.
B. Women exist only as eye candy for aforementioned male sex addicts.
I guess it all depends on the context, if a product or series or whatever is meant to have sexual undertones as a theme then naturally you would advertise it with sex. Because that's just showing what it's about, you don't advertise a movie about sharks with shots of manatees.
But if you add crass sex appeal to a product without it having anything to do with the product, even when you claim to be doing it 'ironically' then I have to call you out as being immature and, potentially, sexist.
I guess to round it all up, if done with the right context sex appeal in marketing and advertising can be acceptable. Provided that sex appeal is actually the point of the product in general.
However just because sex CAN sell does not mean it has to, as plenty of franchises have proven. So I don't really think people like Team Ninja with their incredibly in your face 'boob marketting' stratergies can be defended with 'sex sells' because it doesn't HAVE to and as such, tactics like that are still immature.
And finally, nature schmature. Evolution did not teach us to love big boobs, we are resonsible for our own actions and that's one lame excuse I, as a male myself, am getting sick of hearing.