Is a literary editor only for "Literary Fiction"
'Literary fiction' doesn't really exist. It's what distributors call books that they can't easily categorize. Most books, possibly all, are genre fiction. The days of literary snobbery, where some books were considered worthy literature and others considered mass-market pulp, are long behind us. If you write fiction, you write literature, and your work is literary.
Does a literary editor edit any genre then?
Genre is a marketing tool, and a convenience for readers. It helps them narrow down the bewildering choice of new books. There are 'genre conventions' and some editors do specialize in those conventions. I specialize in stories. If you're trying to tell a story, I can help you.
Is a literary editor more expensive than a 'normal' content editor?
When I was a teenager publishing was still a very snobbish closed shop, and the label 'literary' was used to keep you out. Well, they can't keep you out any more. Doesn't matter what sort of education you had. Doesn't matter what your family background was. Doesn't matter your ethnicity or your religion. If you want to write and publish stories, you can. It's hard work, and you need help, and some of the folks whose help you need, you will have to pay, like an artist for your cover, and a copy editor to correct your spelling and punctuation. And me. I'll help you ensure that your book delivers the reader the satisfaction the reader is looking for.
Last year I did a detailed survey of how to find an editor, and how to work out how much it would cost. You can read the whole thing here. Prices haven't changed significantly since last year. Go to the Editing page for more details of my services, and how much they cost. (My prices are only a little higher than average, as far as I can find out.)