Why do we play these games?
At least in my opinion I would answer the same reason you read a book or watch a movie; for a short time you get to leave reality and go to another place. Experience all of the good and bad elements of that place and time, later to reflect on it.
I would suspect the reasoning behind my preference to anime-based, rather than some other forms, is mainly the artwork. It is rather unique and though its’ formation is from a foreign culture there are recognizable components, as a Westerner, I find attractive. Whether it is the influence of Disney from the early days of development or just that both cultures have a collection mental imagery of what we find appealing, I know or care not. It can be, at its best, stunning and beautiful.
The aspect of gaming which is unsanitized and has adult themes, even taboos included in it, is appealing as well. I am an adult and dislike anyone telling me exactly what I can or cannot watch, read, or enjoy in any given medium. I feel that I should have the power to decide if something is good, bad, decent, vulgar, right or just plain wrong. Add the fact it invokes a “wide open add anything into a video game” feel that I remember fondly from computer games in the eighties, before present-day governing standards, and you’ve got a winner.
Given that I am conservative in almost everything else in my life might surprise most that I stand on such a liberal soapbox toward bishoujo gaming and other guarded forms of expression. I find that should this or any form of expression, given that it is in adult hands and places no harm on others, should not be ommitted merely because of dislike to its’ existance.
post script to this: I have criticisms of this form as well but kept to the positive subject heading.