I have too many cameras and too many formats - as well as having both film and digital. I crave simplicity - until the next "must have" comes along.
That said, I've just traded my R4M, 21mm/f4 and 35mm/f1.2 for an X-E1, 18-55mm and 55-200mm. I actually lost very little £ on the deal as I bought my R4M etc. at reasonable prices to begin with.
Most of my 35mm shooting tends to be digital these days, though I won't get rid of all my 35mm (Nikon) bodies / lenses. I can see me keeping my F5 but selling FE, FM3A and F6. I will keep my Hassy 500c/m but I wouldn't miss my 500el/m. I have a Rolleiflex 2.8e which I love - but use little - and I'm just having an MPP Mk VIII refurbished ahead of the new Type 55 film becoming available in the New Year. At that point, I might have to let go of the Rollei.