Depends on if they're actual female features or something that doesn't exist in nature.

EDIT:

I was referring more to the addictive nature of gacha games.

Games aren't addictive because you can see under a girl's skirt, as that gets old pretty quick. They're addictive because they're fun to play. The waifus are to draw players interest.

They're not addictive because they're fun to play; they're addictive because they activate certain parts of your brain in a certain way.

A dude staring at a screen just clicking buttons with no expression on his face for hours on end might say he's having fun, but that's gonna be hard to sell me on.