Does a Sony F3 still make sense to people in 2015? Because have you seen on eBay lately just how cheap they're going? :-o You can pick up a Sony F3 for similar pricing to a new BMCC.
The expensive SxS media puts me off, but this appears to be an easy way to avoid that expense:
http://www.bhphotovideo.com/c/product/786662-REG/Sonnet_SD_SXS_E34_SDHC_Adapter_for_SxS.html
For the only extra grand or so over the cost of an AF100 or FS100 it would seem like an F3 is worth it if you're looking for an older large sensor camcorder on the ultra cheap.
(as I've been seriously looking into getting an AF100 for only a grand, just so I can have an "impressive" pro looking camera to impress the brides/guests and wedding shoots, with the rest of my kit being 1x GH4 + 1x GH2 + 2x GH1. I know images is all that should matter, and appearances shouldn't matter, but in real life first impressions do matter. If a few extra hundred dollars to get an AF100 over GH2 with the same image quality, then leads to more bookings, that it is money very well spent. But then this logic dangerously leads me down the path to spend even more on a Sony F3... as then I could use the F3 on serious jobs too)
For context, I also own a kitted out BMPCC (that I love love) but it can look like a glorified smartphone to some people :-/ (until they see the images produced! But again, first impressions do matter and last)