SWAP my Bugaboo Bee for a Baby Jogger City Mini Double or City Select ?

I have a Bugaboo Bee Pram/Stroller in Black with a Hotpink Footmuff and Bugaboo Board. (Also have the hotpink parasol but needs new clip to attach to pushchair and needs new raincover). Not even 2 years old in brilliant condition. Cost over 500pounds with the accessories as well. Now expecting another baby and need to buy a double pushchair for baby and toddler. Will swap for a Baby Jogger City Mini Double either Black or the Purple Colour or the City Select but must have the additional seat aswell, Based in Keynsham, Bristol