What's a fair price?

[DSMEZ]

Going to sell my Bugaboo Frog pram to get a double. It's 2 years old, though in the last year it was barely used and is in good condition. I have all the accessories as well--cosy toes, travel bag, clips for carseat, sun cover...

What did it cost

FWIW if it is in really good condition I reckon a bit less than half price of buying it new now (look for best internet deal to check)

We have Instep Nipper (4yo but good cond) to sell which cost £200+ but you can get it for £140 now so I reckon we will ask about £60 and hope to get £50.
HTH