Before I had my first child I bought a second hand quinny buzz (£30) that had already been used for multiple children and (separately) a second hand carrycot/pram bit (£50) to attach to it. Used it lots for multiple kids, storing it in the attic between uses. No more kids so I've just sold the lot on Facebook for £40. DH has been moaning about how 'they got an amazing deal' as if I should have charged more.
It doesn't really matter, as I need the storage space it was using more than we needed the money, but I just wondered what other people who have experience of selling on pushchairs thought?