How much € I can ask for the Camo Umbrella from Fortnite?

Link to the Umbrella:

I also have: 10 euro

So have seen on a website that sell for 30 euro, has the Camo hang glider also worth? And can you explain exactly why you think he has a value of 10 euro?

He is not that rare. I have the most special glider available: MAKO glider and it has a value of 20 euro. People value skins…

Mako is at 60-70 not 20

Theoretisg, he has a value of 0 euro