I've talked to my boyfriend about this topic many times before and we have the same point of view on virginity.
In short, yes, it's good to be a virgin and guys still appreciate it.
But no, it is NOT a bad thing if you're not.
Now, depending on how many sex partners you've had in the past, some guys may or may not be able to accept it.
(wait . . . . . ) before we get into double standards or sexism . . . . Read on. . .
No matter how much women want to use the double standards excuse as the reciprocating response to the fact that when men sleep around it's "okay" in the eyes of society, but when women does it she's a "@ #%"; it's still true.
Alright, think about it like this, "If a key can open many locks, it's a magnificent key. But if a lock can be opened by more than one key, it's not that special right?" - I read this somewhere and thought, I'd never thought of it that way! - it's so true.
When a woman is sleeping around, doesn't that sound gross to you? If she had sex with ONLY partners/bf's that she's been in invested relationships with, then that's understandable.
When a man sleeps with several partners, IF he's protecting himself, that's also understandable BECAUSE men have crazy hormonal urges. And if he's careful, and protecting himself by using condoms and getting check ups regularly, it's a good argument. - THIS IS A SINGLE MAN. NOT OKAY IF HE WAS IN A RELATIONSHIP, AND IS STILL SLEEPING AROUND. WE CALL THEM MANWHORES.
So the best answer for this question would be, it all depends on THAT MAN/YOUR MAN.
Oh by the way, when a man has sex with lots and lots of girls, he doesn't lose anything. (unless he contracts a disease, then that's his bad)
But when a woman has sex with lots and lots of guys, she loses a little of her "innocence" each time. A certain female body part changes the more times she has sex. (Not trying to get all graphic here) For men, nothing changes physically. He still looks the same as the day he hit puberty.
Another way to think about it, if you were a guy and a girl had pies but was giving it to every guy she passed, would you still be interested in her pies? I think not.