I use to collect classical cameras and associated kit, but in the late naughties sold nearly all of it because I feared digital revolution would devalue it. I started to buy some film kit again in 2010 as I missed the unique skill and feeling of the film activity and also my son-in-law started buying some film cameras and was producing some very good retro shots. But after a couple of years I was not doing any film work, and as my approach is "if it is not being used it has to go" I sold it in Jan 2014.
In 2013 I realised that my Nikon D7000 kit was not being used. For example when we went on a weeks Shetland Wildlife Tour I took my Panasonic GX1 with two zoom lens, including 55-200mm as I wanted to keep weight down. Same again when I went to the Scillies in late summer. When I visited local nature reserve at Upton Warren I some times go on my bicycle, so again would take lighter Panasonic.
Now I am preparing to go to Australia and had thought I would upgrade GX1 to GX7 so not having to carry separate view finder. However it turned out to be more economic to trade all Panasonic kit and switch to Sony NEX-6.
I then considered a pancake lens for waking around, but decided better to buy RX100 M2 and have dual advantage of a smaller camera and capability of having long zoom on Nex-6 and RX 100 for normal shots.