explaining the glory of metamagic to a new player.

[Darth Stabber]

Well, the salmonella poisoning you can get from eating raw eggs can put a bit of a damper on it.

One of the many benefits of Vegan Cookies.

On a more serious note, you guys may be right about not trying to force it on her. But there are a menagerie of reasons why she should aside from them being good.
A) Slaymate, she wants one for roleplay purposes, and they are useless in combat. Figure she should get something out of her effort.
B) She wants a PRC (though i don't think she wants a specific one), and auto-turns down ones that require metamagic.
C) Complaining about spell duration running out too soon.