What's the best affordable high fps DSLR -camera for video production?

So I'm looking for at least 1080p 60fps DSLR -cameras, maximum price about 2500$.
I want an DSLR because I also love to take photos, and I just like them more, so don't hint me to get a GoPro or so:D

I've been thinking about Sony A7S, because that's the only DSLR I know that shoots 4k with 25fps and 1080p at 60fps.
But that's also why I'm here… So gimme your opinions!

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